749747988 has 120 divisors (see below), whose sum is σ = 2150458464. Its totient is φ = 225892800.

The previous prime is 749747953. The next prime is 749748007. The reversal of 749747988 is 889747947.

It is a happy number.

749747988 is a `hidden beast` number, since 74 + 97 + 479 + 8 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 751506 + ... + 752502.

Almost surely, 2^749747988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749747988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1075229232).

749747988 is an abundant number, since it is smaller than the sum of its proper divisors (1400710476).

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

749747988 is a wasteful number, since it uses less digits than its factorization.

749747988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235 (or 1224 counting only the distinct ones).

The product of its digits is 28449792, while the sum is 63.

The square root of 749747988 is about 27381.5264001114. The cubic root of 749747988 is about 908.4585214170.

The spelling of 749747988 in words is "seven hundred forty-nine million, seven hundred forty-seven thousand, nine hundred eighty-eight".