745624770 has 64 divisors (see below), whose sum is σ = 1999831680. Its totient is φ = 176345600.

The previous prime is 745624753. The next prime is 745624799. The reversal of 745624770 is 77426547.

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 14025 + ... + 41084.

It is an arithmetic number, because the mean of its divisors is an integer number (31247370).

Almost surely, 2^745624770 is an apocalyptic number.

745624770 is an abundant number, since it is smaller than the sum of its proper divisors (1254206910).

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

745624770 is a wasteful number, since it uses less digits than its factorization.

745624770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55171.

The product of its (nonzero) digits is 329280, while the sum is 42.

The square root of 745624770 is about 27306.1306303182. The cubic root of 745624770 is about 906.7901118383.

The spelling of 745624770 in words is "seven hundred forty-five million, six hundred twenty-four thousand, seven hundred seventy".