239289040 has 40 divisors (see below), whose sum is σ = 585632160. Its totient is φ = 90677376.

The previous prime is 239289013. The next prime is 239289077. The reversal of 239289040 is 40982932.

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 77194 + ... + 80233.

It is an arithmetic number, because the mean of its divisors is an integer number (14640804).

Almost surely, 2^239289040 is an apocalyptic number.

239289040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

239289040 is an abundant number, since it is smaller than the sum of its proper divisors (346343120).

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

239289040 is a wasteful number, since it uses less digits than its factorization.

239289040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157459 (or 157453 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 239289040 is about 15468.9702307555. The cubic root of 239289040 is about 620.8322503572.

The spelling of 239289040 in words is "two hundred thirty-nine million, two hundred eighty-nine thousand, forty".