749061668 has 12 divisors (see below), whose sum is σ = 1320865392. Its totient is φ = 371671560.

The previous prime is 749061641. The next prime is 749061679. The reversal of 749061668 is 866160947.

It is a happy number.

It is a super-2 number, since 2×749061668² = 1122186764933884448, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714230 + ... + 715277.

It is an arithmetic number, because the mean of its divisors is an integer number (110072116).

Almost surely, 2^749061668 is an apocalyptic number.

It is an amenable number.

749061668 is a deficient number, since it is larger than the sum of its proper divisors (571803724).

749061668 is a wasteful number, since it uses less digits than its factorization.

749061668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429642 (or 1429640 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 749061668 is about 27368.9909934583. The cubic root of 749061668 is about 908.1812355343.

The spelling of 749061668 in words is "seven hundred forty-nine million, sixty-one thousand, six hundred sixty-eight".