239234112540 has 144 divisors (see below), whose sum is σ = 739871260128. Its totient is φ = 62549540352.

The previous prime is 239234112527. The next prime is 239234112541. The reversal of 239234112540 is 45211432932.

239234112540 is a `hidden beast` number, since 2 + 392 + 3 + 4 + 11 + 254 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 239234112495 and 239234112504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239234112541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15513874 + ... + 15529286.

It is an arithmetic number, because the mean of its divisors is an integer number (5137994862).

Almost surely, 2^239234112540 is an apocalyptic number.

239234112540 is a gapful number since it is divisible by the number (20) 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 239234112540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369935630064).

239234112540 is an abundant number, since it is smaller than the sum of its proper divisors (500637147588).

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

239234112540 is a wasteful number, since it uses less digits than its factorization.

239234112540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17108 (or 17103 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 239234112540 in words is "two hundred thirty-nine billion, two hundred thirty-four million, one hundred twelve thousand, five hundred forty".