3280144140 has 192 divisors, whose sum is σ = 12560056320. Its totient is φ = 692064000.

The previous prime is 3280144139. The next prime is 3280144141. The reversal of 3280144140 is 414410823.

It is an interprime number because it is at equal distance from previous prime (3280144139) and next prime (3280144141).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (3280144141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15765 + ... + 82515.

It is an arithmetic number, because the mean of its divisors is an integer number (65416960).

Almost surely, 2^3280144140 is an apocalyptic number.

3280144140 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 3280144140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6280028160).

3280144140 is an abundant number, since it is smaller than the sum of its proper divisors (9279912180).

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

3280144140 is a wasteful number, since it uses less digits than its factorization.

3280144140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66789 (or 66781 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 3280144140 is about 57272.5426360660. The cubic root of 3280144140 is about 1485.8135324040.

Adding to 3280144140 its reverse (414410823), we get a palindrome (3694554963).

The spelling of 3280144140 in words is "three billion, two hundred eighty million, one hundred forty-four thousand, one hundred forty".