242515240 has 64 divisors (see below), whose sum is σ = 626616000. Its totient is φ = 83543040.

The previous prime is 242515237. The next prime is 242515261. The reversal of 242515240 is 42515242.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6145 + ... + 22864.

It is an arithmetic number, because the mean of its divisors is an integer number (9790875).

Almost surely, 2^242515240 is an apocalyptic number.

242515240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242515240 is an abundant number, since it is smaller than the sum of its proper divisors (384100760).

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

242515240 is a wasteful number, since it uses less digits than its factorization.

242515240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29050 (or 29046 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 242515240 is about 15572.9008216196. The cubic root of 242515240 is about 623.6099153556.

The spelling of 242515240 in words is "two hundred forty-two million, five hundred fifteen thousand, two hundred forty".