242575731 has 12 divisors (see below), whose sum is σ = 351307008. Its totient is φ = 161292624.

The previous prime is 242575709. The next prime is 242575769. The reversal of 242575731 is 137575242.

It is not a de Polignac number, because 242575731 - 2⁵ = 242575699 is a prime.

It is a super-2 number, since 2×242575731² = 117685970540368722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (242575231) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 31740 + ... + 38633.

It is an arithmetic number, because the mean of its divisors is an integer number (29275584).

Almost surely, 2^242575731 is an apocalyptic number.

242575731 is a deficient number, since it is larger than the sum of its proper divisors (108731277).

242575731 is a wasteful number, since it uses less digits than its factorization.

242575731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70762 (or 70759 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 242575731 is about 15574.8428884532. The cubic root of 242575731 is about 623.6617604155.

The spelling of 242575731 in words is "two hundred forty-two million, five hundred seventy-five thousand, seven hundred thirty-one".