749239678 has 16 divisors (see below), whose sum is σ = 1226450160. Its totient is φ = 340446400.

The previous prime is 749239669. The next prime is 749239717. The reversal of 749239678 is 876932947.

It is a super-2 number, since 2×749239678² = 1122720190179087368, 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 in 7 ways as a sum of consecutive naturals, for example, 115218 + ... + 121546.

It is an arithmetic number, because the mean of its divisors is an integer number (76653135).

Almost surely, 2^749239678 is an apocalyptic number.

749239678 is a deficient number, since it is larger than the sum of its proper divisors (477210482).

749239678 is a wasteful number, since it uses less digits than its factorization.

749239678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11723.

The product of its digits is 4572288, while the sum is 55.

The square root of 749239678 is about 27372.2428383207. The cubic root of 749239678 is about 908.2531711056.

The spelling of 749239678 in words is "seven hundred forty-nine million, two hundred thirty-nine thousand, six hundred seventy-eight".