749283557 has 16 divisors (see below), whose sum is σ = 850153920. Its totient is φ = 654393600.

The previous prime is 749283533. The next prime is 749283683. The reversal of 749283557 is 755382947.

It is a cyclic number.

It is not a de Polignac number, because 749283557 - 2¹⁴ = 749267173 is a prime.

It is a super-2 number, since 2×749283557² = 1122851697581144498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749282557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15869 + ... + 41837.

It is an arithmetic number, because the mean of its divisors is an integer number (53134620).

Almost surely, 2^749283557 is an apocalyptic number.

It is an amenable number.

749283557 is a deficient number, since it is larger than the sum of its proper divisors (100870363).

749283557 is a wasteful number, since it uses less digits than its factorization.

749283557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26084.

The product of its digits is 2116800, while the sum is 50.

The square root of 749283557 is about 27373.0443502362. The cubic root of 749283557 is about 908.2709012856.

The spelling of 749283557 in words is "seven hundred forty-nine million, two hundred eighty-three thousand, five hundred fifty-seven".