3500622720 has 576 divisors, whose sum is σ = 14330347200. Its totient is φ = 784982016.

The previous prime is 3500622709. The next prime is 3500622737. The reversal of 3500622720 is 272260053.

3500622720 is a `hidden beast` number, since 35 + 0 + 0 + 622 + 7 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 22296882 + ... + 22297038.

It is an arithmetic number, because the mean of its divisors is an integer number (24879075).

Almost surely, 2^3500622720 is an apocalyptic number.

3500622720 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 3500622720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7165173600).

3500622720 is an abundant number, since it is smaller than the sum of its proper divisors (10829724480).

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

3500622720 is a wasteful number, since it uses less digits than its factorization.

3500622720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 3500622720 is about 59166.0605414963. The cubic root of 3500622720 is about 1518.3845255831.

Adding to 3500622720 its reverse (272260053), we get a palindrome (3772882773).

The spelling of 3500622720 in words is "three billion, five hundred million, six hundred twenty-two thousand, seven hundred twenty".