242515252 has 24 divisors (see below), whose sum is σ = 493254720. Its totient is φ = 102172800.

The previous prime is 242515237. The next prime is 242515261. The reversal of 242515252 is 252515242.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 242515252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71749 + ... + 75052.

It is an arithmetic number, because the mean of its divisors is an integer number (20552280).

Almost surely, 2^242515252 is an apocalyptic number.

It is an amenable number.

242515252 is an abundant number, since it is smaller than the sum of its proper divisors (250739468).

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

242515252 is a wasteful number, since it uses less digits than its factorization.

242515252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146871 (or 146869 counting only the distinct ones).

The product of its digits is 8000, while the sum is 28.

The square root of 242515252 is about 15572.9012069043. The cubic root of 242515252 is about 623.6099256413.

The spelling of 242515252 in words is "two hundred forty-two million, five hundred fifteen thousand, two hundred fifty-two".