745612056 has 192 divisors, whose sum is σ = 2382981120. Its totient is φ = 206219520.

The previous prime is 745612039. The next prime is 745612067. The reversal of 745612056 is 650216547.

It is a happy number.

745612056 is a `hidden beast` number, since 74 + 561 + 20 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 745612056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2751201 + ... + 2751471.

It is an arithmetic number, because the mean of its divisors is an integer number (12411360).

Almost surely, 2^745612056 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 745612056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1191490560).

745612056 is an abundant number, since it is smaller than the sum of its proper divisors (1637369064).

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

745612056 is a wasteful number, since it uses less digits than its factorization.

745612056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 745612056 is about 27305.8978244628. The cubic root of 745612056 is about 906.7849577735.

The spelling of 745612056 in words is "seven hundred forty-five million, six hundred twelve thousand, fifty-six".