242542624 has 12 divisors (see below), whose sum is σ = 477505854. Its totient is φ = 121271296.

The previous prime is 242542591. The next prime is 242542633. The reversal of 242542624 is 426245242.

It can be written as a sum of positive squares in only one way, i.e., 241243024 + 1299600 = 15532^2 + 1140^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3789697 + ... + 3789760.

Almost surely, 2^242542624 is an apocalyptic number.

It is an amenable number.

242542624 is a deficient number, since it is larger than the sum of its proper divisors (234963230).

242542624 is an equidigital number, since it uses as much as digits as its factorization.

242542624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7579467 (or 7579459 counting only the distinct ones).

The product of its digits is 30720, while the sum is 31.

The square root of 242542624 is about 15573.7800164250. The cubic root of 242542624 is about 623.6333864458.

Adding to 242542624 its reverse (426245242), we get a palindrome (668787866).

The spelling of 242542624 in words is "two hundred forty-two million, five hundred forty-two thousand, six hundred twenty-four".