3261622260 has 192 divisors, whose sum is σ = 10027987200. Its totient is φ = 791990784.

The previous prime is 3261622229. The next prime is 3261622291. The reversal of 3261622260 is 622261623.

3261622260 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3261622229) and next prime (3261622291).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14368267 + ... + 14368493.

It is an arithmetic number, because the mean of its divisors is an integer number (52229100).

Almost surely, 2^3261622260 is an apocalyptic number.

3261622260 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3261622260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5013993600).

3261622260 is an abundant number, since it is smaller than the sum of its proper divisors (6766364940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3261622260 is a wasteful number, since it uses less digits than its factorization.

3261622260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 3261622260 is about 57110.6142498923. The cubic root of 3261622260 is about 1483.0116207858.

Adding to 3261622260 its reverse (622261623), we get a palindrome (3883883883).

It can be divided in two parts, 3261 and 622260, that added together give a triangular number (625521 = T₁₁₁₈).

The spelling of 3261622260 in words is "three billion, two hundred sixty-one million, six hundred twenty-two thousand, two hundred sixty".