320687042 has 16 divisors (see below), whose sum is σ = 518519232. Its totient is φ = 147870480.

The previous prime is 320687023. The next prime is 320687053. The reversal of 320687042 is 240786023.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25667 + ... + 36057.

It is an arithmetic number, because the mean of its divisors is an integer number (32407452).

Almost surely, 2^320687042 is an apocalyptic number.

320687042 is a deficient number, since it is larger than the sum of its proper divisors (197832190).

320687042 is a wasteful number, since it uses less digits than its factorization.

320687042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11593.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 320687042 is about 17907.7369312820. The cubic root of 320687042 is about 684.4795392999.

The spelling of 320687042 in words is "three hundred twenty million, six hundred eighty-seven thousand, forty-two".