239055478490 has 64 divisors (see below), whose sum is σ = 457057595808. Its totient is φ = 89712230400.

The previous prime is 239055478481. The next prime is 239055478499. The reversal of 239055478490 is 94874550932.

It is a Cunningham number, because it is equal to 488933²+1.

It is an interprime number because it is at equal distance from previous prime (239055478481) and next prime (239055478499).

It can be written as a sum of positive squares in 16 ways, for example, as 90584746729 + 148470731761 = 300973^2 + 385319^2 .

It is not an unprimeable number, because it can be changed into a prime (239055478499) 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, 114874250 + ... + 114876330.

Almost surely, 2^239055478490 is an apocalyptic number.

239055478490 is a deficient number, since it is larger than the sum of its proper divisors (218002117318).

239055478490 is a wasteful number, since it uses less digits than its factorization.

239055478490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3923.

The product of its (nonzero) digits is 10886400, while the sum is 56.

The spelling of 239055478490 in words is "two hundred thirty-nine billion, fifty-five million, four hundred seventy-eight thousand, four hundred ninety".