238239563904 has 384 divisors, whose sum is σ = 774230184000. Its totient is φ = 72634060800.

The previous prime is 238239563899. The next prime is 238239563909. The reversal of 238239563904 is 409365932832.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (238239563899) and next prime (238239563909).

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (238239563909) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17131354 + ... + 17145254.

Almost surely, 2^238239563904 is an apocalyptic number.

238239563904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238239563904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (387115092000).

238239563904 is an abundant number, since it is smaller than the sum of its proper divisors (535990620096).

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

238239563904 is a wasteful number, since it uses less digits than its factorization.

238239563904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13978 (or 13954 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 54.

The spelling of 238239563904 in words is "two hundred thirty-eight billion, two hundred thirty-nine million, five hundred sixty-three thousand, nine hundred four".