42658444 has 12 divisors (see below), whose sum is σ = 74843104. Its totient is φ = 21274704.

The previous prime is 42658417. The next prime is 42658453. The reversal of 42658444 is 44485624.

It is a happy number.

It is a super-2 number, since 2×42658444² = 3639485689002272, which contains 22 as substring.

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, 11844 + ... + 15019.

Almost surely, 2^42658444 is an apocalyptic number.

It is an amenable number.

42658444 is a deficient number, since it is larger than the sum of its proper divisors (32184660).

42658444 is a wasteful number, since it uses less digits than its factorization.

42658444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27264 (or 27262 counting only the distinct ones).

The product of its digits is 122880, while the sum is 37.

The square root of 42658444 is about 6531.3432002920. The cubic root of 42658444 is about 349.4097370743.

The spelling of 42658444 in words is "forty-two million, six hundred fifty-eight thousand, four hundred forty-four".