745732745 has 16 divisors (see below), whose sum is σ = 935454720. Its totient is φ = 570024000.

The previous prime is 745732733. The next prime is 745732751. The reversal of 745732745 is 547237547.

It is a de Polignac number, because none of the positive numbers 2^k-745732745 is a prime.

It is a super-2 number, since 2×745732745² = 1112234653930470050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 745732696 and 745732705.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18206 + ... + 42695.

It is an arithmetic number, because the mean of its divisors is an integer number (58465920).

Almost surely, 2^745732745 is an apocalyptic number.

It is an amenable number.

745732745 is a deficient number, since it is larger than the sum of its proper divisors (189721975).

745732745 is a wasteful number, since it uses less digits than its factorization.

745732745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61016.

The product of its digits is 823200, while the sum is 44.

The square root of 745732745 is about 27308.1076788561. The cubic root of 745732745 is about 906.8338809209.

The spelling of 745732745 in words is "seven hundred forty-five million, seven hundred thirty-two thousand, seven hundred forty-five".