242155312 has 40 divisors (see below), whose sum is σ = 536992416. Its totient is φ = 103627776.

The previous prime is 242155301. The next prime is 242155321. The reversal of 242155312 is 213551242.

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, 108318 + ... + 110530.

Almost surely, 2^242155312 is an apocalyptic number.

It is an amenable number.

242155312 is an abundant number, since it is smaller than the sum of its proper divisors (294837104).

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

242155312 is a wasteful number, since it uses less digits than its factorization.

242155312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205 (or 3199 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 242155312 is about 15561.3403021719. The cubic root of 242155312 is about 623.3012532383.

The spelling of 242155312 in words is "two hundred forty-two million, one hundred fifty-five thousand, three hundred twelve".