242431542 has 20 divisors (see below), whose sum is σ = 543226596. Its totient is φ = 80810460.

The previous prime is 242431489. The next prime is 242431571. The reversal of 242431542 is 245134242.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 748084 + ... + 748407.

Almost surely, 2^242431542 is an apocalyptic number.

242431542 is an abundant number, since it is smaller than the sum of its proper divisors (300795054).

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

242431542 is a wasteful number, since it uses less digits than its factorization.

242431542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496505 (or 1496496 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 242431542 is about 15570.2132933367. The cubic root of 242431542 is about 623.5381660387.

Adding to 242431542 its reverse (245134242), we get a palindrome (487565784).

The spelling of 242431542 in words is "two hundred forty-two million, four hundred thirty-one thousand, five hundred forty-two".