42558424 has 16 divisors (see below), whose sum is σ = 79940520. Its totient is φ = 21240960.

The previous prime is 42558409. The next prime is 42558437. The reversal of 42558424 is 42485524.

It is a super-2 number, since 2×42558424² = 3622438906727552, 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 42558424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259 + ... + 9229.

Almost surely, 2^42558424 is an apocalyptic number.

It is an amenable number.

42558424 is a deficient number, since it is larger than the sum of its proper divisors (37382096).

42558424 is a wasteful number, since it uses less digits than its factorization.

42558424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9570 (or 9566 counting only the distinct ones).

The product of its digits is 51200, while the sum is 34.

The square root of 42558424 is about 6523.6817825519. The cubic root of 42558424 is about 349.1364397848.

Subtracting from 42558424 its reverse (42485524), we obtain a square (72900 = 270²).

The spelling of 42558424 in words is "forty-two million, five hundred fifty-eight thousand, four hundred twenty-four".