3240890172 has 72 divisors (see below), whose sum is σ = 8900643024. Its totient is φ = 988356096.

The previous prime is 3240890129. The next prime is 3240890189. The reversal of 3240890172 is 2710980423.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22243 + ... + 83525.

It is an arithmetic number, because the mean of its divisors is an integer number (123620042).

Almost surely, 2^3240890172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3240890172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4450321512).

3240890172 is an abundant number, since it is smaller than the sum of its proper divisors (5659752852).

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

3240890172 is a wasteful number, since it uses less digits than its factorization.

3240890172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61419 (or 61414 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 3240890172 is about 56928.8167099932. The cubic root of 3240890172 is about 1479.8627478027.

The spelling of 3240890172 in words is "three billion, two hundred forty million, eight hundred ninety thousand, one hundred seventy-two".