744905057 has 8 divisors (see below), whose sum is σ = 802494336. Its totient is φ = 687357072.

The previous prime is 744905033. The next prime is 744905059. The reversal of 744905057 is 750509447.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 744905057 - 2¹⁰ = 744904033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (744905059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34328 + ... + 51654.

It is an arithmetic number, because the mean of its divisors is an integer number (100311792).

Almost surely, 2^744905057 is an apocalyptic number.

It is an amenable number.

744905057 is a deficient number, since it is larger than the sum of its proper divisors (57589279).

744905057 is a wasteful number, since it uses less digits than its factorization.

744905057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20647.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 744905057 is about 27292.9488513059. The cubic root of 744905057 is about 906.4982587268.

The spelling of 744905057 in words is "seven hundred forty-four million, nine hundred five thousand, fifty-seven".