749027668 has 6 divisors (see below), whose sum is σ = 1310798426. Its totient is φ = 374513832.

The previous prime is 749027651. The next prime is 749027693. The reversal of 749027668 is 866720947.

It can be written as a sum of positive squares in only one way, i.e., 672779844 + 76247824 = 25938^2 + 8732^2 .

It is a super-2 number, since 2×749027668² = 1122084894859036448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93628455 + ... + 93628462.

Almost surely, 2^749027668 is an apocalyptic number.

It is an amenable number.

749027668 is a deficient number, since it is larger than the sum of its proper divisors (561770758).

749027668 is a wasteful number, since it uses less digits than its factorization.

749027668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187256921 (or 187256919 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 49.

The square root of 749027668 is about 27368.3698454987. The cubic root of 749027668 is about 908.1674945076.

The spelling of 749027668 in words is "seven hundred forty-nine million, twenty-seven thousand, six hundred sixty-eight".