475044138 has 24 divisors (see below), whose sum is σ = 1031004000. Its totient is φ = 158080104.

The previous prime is 475044133. The next prime is 475044151. The reversal of 475044138 is 831440574.

It is not an unprimeable number, because it can be changed into a prime (475044133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11248 + ... + 32811.

It is an arithmetic number, because the mean of its divisors is an integer number (42958500).

Almost surely, 2^475044138 is an apocalyptic number.

475044138 is an abundant number, since it is smaller than the sum of its proper divisors (555959862).

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

475044138 is a wasteful number, since it uses less digits than its factorization.

475044138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44666 (or 44663 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 475044138 is about 21795.5072893475. The cubic root of 475044138 is about 780.2695419531.

The spelling of 475044138 in words is "four hundred seventy-five million, forty-four thousand, one hundred thirty-eight".