749354457 has 16 divisors (see below), whose sum is σ = 1027512000. Its totient is φ = 485574144.

The previous prime is 749354449. The next prime is 749354477. The reversal of 749354457 is 754453947.

It is not a de Polignac number, because 749354457 - 2³ = 749354449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (749354477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8032 + ... + 39537.

It is an arithmetic number, because the mean of its divisors is an integer number (64219500).

Almost surely, 2^749354457 is an apocalyptic number.

It is an amenable number.

749354457 is a deficient number, since it is larger than the sum of its proper divisors (278157543).

749354457 is a wasteful number, since it uses less digits than its factorization.

749354457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47720.

The product of its digits is 2116800, while the sum is 48.

The square root of 749354457 is about 27374.3393892894. The cubic root of 749354457 is about 908.2995483735.

The spelling of 749354457 in words is "seven hundred forty-nine million, three hundred fifty-four thousand, four hundred fifty-seven".