742931856 has 30 divisors (see below), whose sum is σ = 2079177750. Its totient is φ = 247643904.

The previous prime is 742931851. The next prime is 742931869. The reversal of 742931856 is 658139247.

It can be written as a sum of positive squares in only one way, i.e., 594579456 + 148352400 = 24384^2 + 12180^2 .

It is not an unprimeable number, because it can be changed into a prime (742931851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2579481 + ... + 2579768.

It is an arithmetic number, because the mean of its divisors is an integer number (69305925).

Almost surely, 2^742931856 is an apocalyptic number.

It is an amenable number.

742931856 is an abundant number, since it is smaller than the sum of its proper divisors (1336245894).

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

742931856 is a wasteful number, since it uses less digits than its factorization.

742931856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5159263 (or 5159254 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 742931856 is about 27256.7763317675. The cubic root of 742931856 is about 905.6971342680.

The spelling of 742931856 in words is "seven hundred forty-two million, nine hundred thirty-one thousand, eight hundred fifty-six".