478685742 has 32 divisors (see below), whose sum is σ = 982394784. Its totient is φ = 155404800.

The previous prime is 478685737. The next prime is 478685743. The reversal of 478685742 is 247586874.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478685743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185928 + ... + 188484.

It is an arithmetic number, because the mean of its divisors is an integer number (30699837).

Almost surely, 2^478685742 is an apocalyptic number.

478685742 is an abundant number, since it is smaller than the sum of its proper divisors (503709042).

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

478685742 is a wasteful number, since it uses less digits than its factorization.

478685742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3364.

The product of its digits is 3010560, while the sum is 51.

The square root of 478685742 is about 21878.8880430428. Note that the first 3 decimals coincide. The cubic root of 478685742 is about 782.2582714088.

The spelling of 478685742 in words is "four hundred seventy-eight million, six hundred eighty-five thousand, seven hundred forty-two".