242515320 has 32 divisors (see below), whose sum is σ = 727546320. Its totient is φ = 64670720.

The previous prime is 242515307. The next prime is 242515331. The reversal of 242515320 is 23515242.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010361 + ... + 1010600.

Almost surely, 2^242515320 is an apocalyptic number.

242515320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242515320 is an abundant number, since it is smaller than the sum of its proper divisors (485031000).

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

242515320 is a wasteful number, since it uses less digits than its factorization.

242515320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020975 (or 2020971 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 242515320 is about 15572.9033901839. The cubic root of 242515320 is about 623.6099839270.

The spelling of 242515320 in words is "two hundred forty-two million, five hundred fifteen thousand, three hundred twenty".