725144828 has 12 divisors (see below), whose sum is σ = 1324177680. Its totient is φ = 346808352.

The previous prime is 725144803. The next prime is 725144831. The reversal of 725144828 is 828441527.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3940913 + ... + 3941096.

It is an arithmetic number, because the mean of its divisors is an integer number (110348140).

Almost surely, 2^725144828 is an apocalyptic number.

It is an amenable number.

725144828 is a deficient number, since it is larger than the sum of its proper divisors (599032852).

725144828 is a wasteful number, since it uses less digits than its factorization.

725144828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7882036 (or 7882034 counting only the distinct ones).

The product of its digits is 143360, while the sum is 41.

The square root of 725144828 is about 26928.5132898198. The cubic root of 725144828 is about 898.4107046061.

The spelling of 725144828 in words is "seven hundred twenty-five million, one hundred forty-four thousand, eight hundred twenty-eight".