749665290 has 64 divisors (see below), whose sum is σ = 1965606912. Its totient is φ = 181473600.

The previous prime is 749665249. The next prime is 749665297. The reversal of 749665290 is 92566947.

It is not an unprimeable number, because it can be changed into a prime (749665297) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 323235 + ... + 325545.

It is an arithmetic number, because the mean of its divisors is an integer number (30712608).

Almost surely, 2^749665290 is an apocalyptic number.

749665290 is an abundant number, since it is smaller than the sum of its proper divisors (1215941622).

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

749665290 is a wasteful number, since it uses less digits than its factorization.

749665290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3315.

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 749665290 is about 27380.0162527344. The cubic root of 749665290 is about 908.4251188754.

The spelling of 749665290 in words is "seven hundred forty-nine million, six hundred sixty-five thousand, two hundred ninety".