749568920 has 16 divisors (see below), whose sum is σ = 1686530160. Its totient is φ = 299827552.

The previous prime is 749568907. The next prime is 749568923. The reversal of 749568920 is 29865947.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749568923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9369572 + ... + 9369651.

It is an arithmetic number, because the mean of its divisors is an integer number (105408135).

Almost surely, 2^749568920 is an apocalyptic number.

It is an amenable number.

749568920 is an abundant number, since it is smaller than the sum of its proper divisors (936961240).

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

749568920 is a wasteful number, since it uses less digits than its factorization.

749568920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18739234 (or 18739230 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 749568920 is about 27378.2563360050. The cubic root of 749568920 is about 908.3861909781.

The spelling of 749568920 in words is "seven hundred forty-nine million, five hundred sixty-eight thousand, nine hundred twenty".