745656424 has 8 divisors (see below), whose sum is σ = 1398105810. Its totient is φ = 372828208.

The previous prime is 745656419. The next prime is 745656511. The reversal of 745656424 is 424656547.

It can be written as a sum of positive squares in only one way, i.e., 512116900 + 233539524 = 22630^2 + 15282^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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, 46603519 + ... + 46603534.

Almost surely, 2^745656424 is an apocalyptic number.

It is an amenable number.

745656424 is a deficient number, since it is larger than the sum of its proper divisors (652449386).

745656424 is a wasteful number, since it uses less digits than its factorization.

745656424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93207059 (or 93207055 counting only the distinct ones).

The product of its digits is 806400, while the sum is 43.

The square root of 745656424 is about 27306.7102375954. The cubic root of 745656424 is about 906.8029436402.

The spelling of 745656424 in words is "seven hundred forty-five million, six hundred fifty-six thousand, four hundred twenty-four".