242543444 has 24 divisors (see below), whose sum is σ = 498656928. Its totient is φ = 101766240.

The previous prime is 242543407. The next prime is 242543459. The reversal of 242543444 is 444345242.

It is a super-2 number, since 2×242543444² = 117654644454762272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 242543444.

It is a congruent number.

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, 211442 + ... + 212585.

It is an arithmetic number, because the mean of its divisors is an integer number (20777372).

Almost surely, 2^242543444 is an apocalyptic number.

It is an amenable number.

242543444 is an abundant number, since it is smaller than the sum of its proper divisors (256113484).

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

242543444 is a wasteful number, since it uses less digits than its factorization.

242543444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424055 (or 424053 counting only the distinct ones).

The product of its digits is 61440, while the sum is 32.

The square root of 242543444 is about 15573.8063427025. The cubic root of 242543444 is about 623.6340892485.

Adding to 242543444 its reverse (444345242), we get a palindrome (686888686).

The spelling of 242543444 in words is "two hundred forty-two million, five hundred forty-three thousand, four hundred forty-four".