442868474 has 4 divisors (see below), whose sum is σ = 664302714. Its totient is φ = 221434236.

The previous prime is 442868383. The next prime is 442868501. The reversal of 442868474 is 474868244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 281400625 + 161467849 = 16775^2 + 12707^2 .

It is a super-2 number, since 2×442868474² = 392264970526177352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110717117 + ... + 110717120.

Almost surely, 2^442868474 is an apocalyptic number.

442868474 is a deficient number, since it is larger than the sum of its proper divisors (221434240).

442868474 is a wasteful number, since it uses less digits than its factorization.

442868474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221434239.

The product of its digits is 1376256, while the sum is 47.

The square root of 442868474 is about 21044.4404534784. The cubic root of 442868474 is about 762.2397421916.

The spelling of 442868474 in words is "four hundred forty-two million, eight hundred sixty-eight thousand, four hundred seventy-four".