239121008 has 80 divisors (see below), whose sum is σ = 554964480. Its totient is φ = 97644288.

The previous prime is 239120993. The next prime is 239121019. The reversal of 239121008 is 800121932.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269141 + ... + 270027.

It is an arithmetic number, because the mean of its divisors is an integer number (6937056).

Almost surely, 2^239121008 is an apocalyptic number.

239121008 is a gapful number since it is divisible by the number (28) 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 239121008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277482240).

239121008 is an abundant number, since it is smaller than the sum of its proper divisors (315843472).

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

239121008 is a wasteful number, since it uses less digits than its factorization.

239121008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014 (or 1008 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 239121008 is about 15463.5380168964. The cubic root of 239121008 is about 620.6868973949.

The spelling of 239121008 in words is "two hundred thirty-nine million, one hundred twenty-one thousand, eight".