239234081478 has 64 divisors (see below), whose sum is σ = 551645061120. Its totient is φ = 67752115200.

The previous prime is 239234081453. The next prime is 239234081479. The reversal of 239234081478 is 874180432932.

It is a self number, because there is not a number n which added to its sum of digits gives 239234081478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239234081479) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2201118 + ... + 2307246.

It is an arithmetic number, because the mean of its divisors is an integer number (8619454080).

Almost surely, 2^239234081478 is an apocalyptic number.

239234081478 is an abundant number, since it is smaller than the sum of its proper divisors (312410979642).

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

239234081478 is a wasteful number, since it uses less digits than its factorization.

239234081478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106613.

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 239234081478 in words is "two hundred thirty-nine billion, two hundred thirty-four million, eighty-one thousand, four hundred seventy-eight".