3225294720 has 128 divisors (see below), whose sum is σ = 11422980000. Its totient is φ = 860073984.

The previous prime is 3225294713. The next prime is 3225294731. The reversal of 3225294720 is 274925223.

It is a tau number, because it is divible by the number of its divisors (128).

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 15 ways as a sum of consecutive naturals, for example, 76045 + ... + 110604.

Almost surely, 2^3225294720 is an apocalyptic number.

3225294720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3225294720 is an abundant number, since it is smaller than the sum of its proper divisors (8197685280).

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

3225294720 is a wasteful number, since it uses less digits than its factorization.

3225294720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186677 (or 186659 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 3225294720 is about 56791.6782636330. The cubic root of 3225294720 is about 1477.4851862773.

The spelling of 3225294720 in words is "three billion, two hundred twenty-five million, two hundred ninety-four thousand, seven hundred twenty".