42242544 has 30 divisors (see below), whose sum is σ = 118220856. Its totient is φ = 14080800.

The previous prime is 42242539. The next prime is 42242573. The reversal of 42242544 is 44524224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 146532 + ... + 146819.

Almost surely, 2^42242544 is an apocalyptic number.

It is an amenable number.

42242544 is an abundant number, since it is smaller than the sum of its proper divisors (75978312).

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

42242544 is a wasteful number, since it uses less digits than its factorization.

42242544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293365 (or 293356 counting only the distinct ones).

The product of its digits is 10240, while the sum is 27.

The square root of 42242544 is about 6499.4264362327. The cubic root of 42242544 is about 348.2704991603.

Adding to 42242544 its reverse (44524224), we get a palindrome (86766768).

The spelling of 42242544 in words is "forty-two million, two hundred forty-two thousand, five hundred forty-four".