725212044 has 36 divisors (see below), whose sum is σ = 1941010344. Its totient is φ = 227517312.

The previous prime is 725212043. The next prime is 725212049. The reversal of 725212044 is 440212527.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 725211999 and 725212017.

It is not an unprimeable number, because it can be changed into a prime (725212043) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 591882 + ... + 593105.

It is an arithmetic number, because the mean of its divisors is an integer number (53916954).

Almost surely, 2^725212044 is an apocalyptic number.

It is an amenable number.

725212044 is an abundant number, since it is smaller than the sum of its proper divisors (1215798300).

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

725212044 is a wasteful number, since it uses less digits than its factorization.

725212044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185014 (or 1185009 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 725212044 is about 26929.7613060346. The cubic root of 725212044 is about 898.4384626050.

The spelling of 725212044 in words is "seven hundred twenty-five million, two hundred twelve thousand, forty-four".