745618472 has 16 divisors (see below), whose sum is σ = 1399067700. Its totient is φ = 372533760.

The previous prime is 745618399. The next prime is 745618483. The reversal of 745618472 is 274816547.

It can be written as a sum of positive squares in 2 ways, for example, as 648517156 + 97101316 = 25466^2 + 9854^2 .

It is a super-2 number, since 2×745618472² = 1111893811575229568, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 22697 + ... + 44792.

Almost surely, 2^745618472 is an apocalyptic number.

It is an amenable number.

745618472 is a deficient number, since it is larger than the sum of its proper divisors (653449228).

745618472 is a wasteful number, since it uses less digits than its factorization.

745618472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68876 (or 68872 counting only the distinct ones).

The product of its digits is 376320, while the sum is 44.

The square root of 745618472 is about 27306.0153079866. The cubic root of 745618472 is about 906.7875587309.

The spelling of 745618472 in words is "seven hundred forty-five million, six hundred eighteen thousand, four hundred seventy-two".