745631904 has 48 divisors (see below), whose sum is σ = 2005032960. Its totient is φ = 242480640.

The previous prime is 745631897. The next prime is 745631947. The reversal of 745631904 is 409136547.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90784 + ... + 98655.

It is an arithmetic number, because the mean of its divisors is an integer number (41771520).

Almost surely, 2^745631904 is an apocalyptic number.

It is an amenable number.

745631904 is an abundant number, since it is smaller than the sum of its proper divisors (1259401056).

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

745631904 is a wasteful number, since it uses less digits than its factorization.

745631904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189493 (or 189485 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 745631904 is about 27306.2612600114. The cubic root of 745631904 is about 906.7930038291.

It can be divided in two parts, 74563 and 1904, that added together give a palindrome (76467).

The spelling of 745631904 in words is "seven hundred forty-five million, six hundred thirty-one thousand, nine hundred four".