3204257720 has 32 divisors (see below), whose sum is σ = 7404436800. Its totient is φ = 1247061888.

The previous prime is 3204257713. The next prime is 3204257723. The reversal of 3204257720 is 277524023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3204257723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1081040 + ... + 1083999.

It is an arithmetic number, because the mean of its divisors is an integer number (231388650).

Almost surely, 2^3204257720 is an apocalyptic number.

It is an amenable number.

3204257720 is an abundant number, since it is smaller than the sum of its proper divisors (4200179080).

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

3204257720 is a wasteful number, since it uses less digits than its factorization.

3204257720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165087 (or 2165083 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 3204257720 is about 56606.1632686760. The cubic root of 3204257720 is about 1474.2658754137.

The spelling of 3204257720 in words is "three billion, two hundred four million, two hundred fifty-seven thousand, seven hundred twenty".