745642756 has 6 divisors (see below), whose sum is σ = 1304874830. Its totient is φ = 372821376.

The previous prime is 745642741. The next prime is 745642811. The reversal of 745642756 is 657246547.

It can be written as a sum of positive squares in only one way, i.e., 487526400 + 258116356 = 22080^2 + 16066^2 .

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 as a sum of consecutive naturals, namely, 93205341 + ... + 93205348.

Almost surely, 2^745642756 is an apocalyptic number.

It is an amenable number.

745642756 is a deficient number, since it is larger than the sum of its proper divisors (559232074).

745642756 is a wasteful number, since it uses less digits than its factorization.

745642756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186410693 (or 186410691 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 46.

The square root of 745642756 is about 27306.4599682932. The cubic root of 745642756 is about 906.7974029926.

The spelling of 745642756 in words is "seven hundred forty-five million, six hundred forty-two thousand, seven hundred fifty-six".