442412258 has 18 divisors (see below), whose sum is σ = 674732331. Its totient is φ = 217562244.

The previous prime is 442412237. The next prime is 442412303. The reversal of 442412258 is 852214244.

It can be written as a sum of positive squares in only one way, i.e., 221206129 + 221206129 = 14873^2 + 14873^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=14873.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3182753 + ... + 3182891.

Almost surely, 2^442412258 is an apocalyptic number.

442412258 is a deficient number, since it is larger than the sum of its proper divisors (232320073).

442412258 is an equidigital number, since it uses as much as digits as its factorization.

442412258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 248 counting only the distinct ones).

The product of its digits is 20480, while the sum is 32.

The square root of 442412258 is about 21033.5983131750. The cubic root of 442412258 is about 761.9779146861.

Multiplying 442412258 by its sum of digits (32), we get a square (14157192256 = 118984²).

The spelling of 442412258 in words is "four hundred forty-two million, four hundred twelve thousand, two hundred fifty-eight".