742855916 has 12 divisors (see below), whose sum is σ = 1418179560. Its totient is φ = 337661760.

The previous prime is 742855903. The next prime is 742855921. The reversal of 742855916 is 619558247.

It is a happy number.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8441501 + ... + 8441588.

It is an arithmetic number, because the mean of its divisors is an integer number (118181630).

Almost surely, 2^742855916 is an apocalyptic number.

It is an amenable number.

742855916 is a deficient number, since it is larger than the sum of its proper divisors (675323644).

742855916 is a wasteful number, since it uses less digits than its factorization.

742855916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16883104 (or 16883102 counting only the distinct ones).

The product of its digits is 604800, while the sum is 47.

The square root of 742855916 is about 27255.3832480851. The cubic root of 742855916 is about 905.6662741097. Note that the first 3 decimals are identical.

It can be divided in two parts, 742 and 855916, that added together give a palindrome (856658).

The spelling of 742855916 in words is "seven hundred forty-two million, eight hundred fifty-five thousand, nine hundred sixteen".