745633856 has 56 divisors (see below), whose sum is σ = 1617610176. Its totient is φ = 338193920.

The previous prime is 745633841. The next prime is 745633907. The reversal of 745633856 is 658336547.

It is a self number, because there is not a number n which added to its sum of digits gives 745633856.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454670 + ... + 456306.

It is an arithmetic number, because the mean of its divisors is an integer number (28885896).

Almost surely, 2^745633856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 745633856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (808805088).

745633856 is an abundant number, since it is smaller than the sum of its proper divisors (871976320).

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

745633856 is a wasteful number, since it uses less digits than its factorization.

745633856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307 (or 2297 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 47.

The square root of 745633856 is about 27306.2970027062. The cubic root of 745633856 is about 906.7937951304.

The spelling of 745633856 in words is "seven hundred forty-five million, six hundred thirty-three thousand, eight hundred fifty-six".