745246872 has 64 divisors (see below), whose sum is σ = 2141532000. Its totient is φ = 239847552.

The previous prime is 745246849. The next prime is 745246883. The reversal of 745246872 is 278642547.

It is a happy number.

745246872 is a `hidden beast` number, since 74 + 52 + 468 + 72 = 666.

It is a hoax number, since the sum of its digits (45) 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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53223 + ... + 65750.

Almost surely, 2^745246872 is an apocalyptic number.

745246872 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

745246872 is an abundant number, since it is smaller than the sum of its proper divisors (1396285128).

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

745246872 is a wasteful number, since it uses less digits than its factorization.

745246872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119017 (or 119007 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 745246872 is about 27299.2100984626. The cubic root of 745246872 is about 906.6368926449.

The spelling of 745246872 in words is "seven hundred forty-five million, two hundred forty-six thousand, eight hundred seventy-two".