749857156 has 12 divisors (see below), whose sum is σ = 1312991260. Its totient is φ = 374716800.

The previous prime is 749857151. The next prime is 749857169. The reversal of 749857156 is 651758947.

It can be written as a sum of positive squares in 2 ways, for example, as 372876100 + 376981056 = 19310^2 + 19416^2 .

It is not an unprimeable number, because it can be changed into a prime (749857151) 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, 44841 + ... + 59248.

Almost surely, 2^749857156 is an apocalyptic number.

It is an amenable number.

749857156 is a deficient number, since it is larger than the sum of its proper divisors (563134104).

749857156 is a wasteful number, since it uses less digits than its factorization.

749857156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105894 (or 105892 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 52.

The square root of 749857156 is about 27383.5197883691. The cubic root of 749857156 is about 908.5026116928.

The spelling of 749857156 in words is "seven hundred forty-nine million, eight hundred fifty-seven thousand, one hundred fifty-six".