742332646 has 16 divisors (see below), whose sum is σ = 1215401040. Its totient is φ = 337236480.

The previous prime is 742332637. The next prime is 742332649. The reversal of 742332646 is 646233247.

It is a super-2 number, since 2×742332646² = 1102115514634722632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742332649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36010 + ... + 52738.

It is an arithmetic number, because the mean of its divisors is an integer number (75962565).

Almost surely, 2^742332646 is an apocalyptic number.

742332646 is a deficient number, since it is larger than the sum of its proper divisors (473068394).

742332646 is a wasteful number, since it uses less digits than its factorization.

742332646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18759.

The product of its digits is 145152, while the sum is 37.

The square root of 742332646 is about 27245.7821689890. The cubic root of 742332646 is about 905.4535727865.

The spelling of 742332646 in words is "seven hundred forty-two million, three hundred thirty-two thousand, six hundred forty-six".