749899136 has 48 divisors (see below), whose sum is σ = 1737862740. Its totient is φ = 321382656.

The previous prime is 749899133. The next prime is 749899177. The reversal of 749899136 is 631998947.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749899133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53510 + ... + 66053.

Almost surely, 2^749899136 is an apocalyptic number.

It is an amenable number.

749899136 is an abundant number, since it is smaller than the sum of its proper divisors (987963604).

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

749899136 is a wasteful number, since it uses less digits than its factorization.

749899136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119591 (or 119572 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 56.

The square root of 749899136 is about 27384.2862970719. The cubic root of 749899136 is about 908.5195652453.

The spelling of 749899136 in words is "seven hundred forty-nine million, eight hundred ninety-nine thousand, one hundred thirty-six".