242923820 has 12 divisors (see below), whose sum is σ = 510140064. Its totient is φ = 97169520.

The previous prime is 242923801. The next prime is 242923841. The reversal of 242923820 is 28329242.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6073076 + ... + 6073115.

It is an arithmetic number, because the mean of its divisors is an integer number (42511672).

Almost surely, 2^242923820 is an apocalyptic number.

242923820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242923820 is an abundant number, since it is smaller than the sum of its proper divisors (267216244).

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

242923820 is a wasteful number, since it uses less digits than its factorization.

242923820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12146200 (or 12146198 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 242923820 is about 15586.0136019445. The cubic root of 242923820 is about 623.9599299001.

The spelling of 242923820 in words is "two hundred forty-two million, nine hundred twenty-three thousand, eight hundred twenty".