742664868 has 48 divisors (see below), whose sum is σ = 1934397696. Its totient is φ = 219814560.

The previous prime is 742664833. The next prime is 742664887. The reversal of 742664868 is 868466247.

It is a super-2 number, since 2×742664868² = 1103102212322914848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 742664868.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59746 + ... + 71097.

It is an arithmetic number, because the mean of its divisors is an integer number (40299952).

Almost surely, 2^742664868 is an apocalyptic number.

It is an amenable number.

742664868 is an abundant number, since it is smaller than the sum of its proper divisors (1191732828).

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

742664868 is a wasteful number, since it uses less digits than its factorization.

742664868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130904 (or 130902 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 51.

The square root of 742664868 is about 27251.8782471961. The cubic root of 742664868 is about 905.5886275740.

The spelling of 742664868 in words is "seven hundred forty-two million, six hundred sixty-four thousand, eight hundred sixty-eight".