745620256 has 48 divisors (see below), whose sum is σ = 1534982400. Its totient is φ = 355852288.

The previous prime is 745620223. The next prime is 745620257. The reversal of 745620256 is 652026547.

It is not an unprimeable number, because it can be changed into a prime (745620257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 528480 + ... + 529888.

It is an arithmetic number, because the mean of its divisors is an integer number (31978800).

Almost surely, 2^745620256 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 745620256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (767491200).

745620256 is an abundant number, since it is smaller than the sum of its proper divisors (789362144).

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

745620256 is a wasteful number, since it uses less digits than its factorization.

745620256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161 (or 2153 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 745620256 is about 27306.0479747619. The cubic root of 745620256 is about 906.7882819371.

The spelling of 745620256 in words is "seven hundred forty-five million, six hundred twenty thousand, two hundred fifty-six".