239981883840 has 224 divisors, whose sum is σ = 846955806720. Its totient is φ = 63968486400.

The previous prime is 239981883803. The next prime is 239981883859. The reversal of 239981883840 is 48388189932.

239981883840 is a `hidden beast` number, since 239 + 9 + 8 + 18 + 8 + 384 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29294145 + ... + 29302335.

Almost surely, 2^239981883840 is an apocalyptic number.

239981883840 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 239981883840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423477903360).

239981883840 is an abundant number, since it is smaller than the sum of its proper divisors (606973922880).

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

239981883840 is a wasteful number, since it uses less digits than its factorization.

239981883840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11608 (or 11592 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The spelling of 239981883840 in words is "two hundred thirty-nine billion, nine hundred eighty-one million, eight hundred eighty-three thousand, eight hundred forty".