442525431 has 8 divisors (see below), whose sum is σ = 590318064. Its totient is φ = 294874880.

The previous prime is 442525399. The next prime is 442525493. The reversal of 442525431 is 134525244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 442525431 - 2⁵ = 442525399 is a prime.

It is a super-2 number, since 2×442525431² = 391657514163471522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442505431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28026 + ... + 40871.

It is an arithmetic number, because the mean of its divisors is an integer number (73789758).

Almost surely, 2^442525431 is an apocalyptic number.

442525431 is a deficient number, since it is larger than the sum of its proper divisors (147792633).

442525431 is a wasteful number, since it uses less digits than its factorization.

442525431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71041.

The product of its digits is 19200, while the sum is 30.

The square root of 442525431 is about 21036.2884321356. The cubic root of 442525431 is about 762.0428827280.

The spelling of 442525431 in words is "four hundred forty-two million, five hundred twenty-five thousand, four hundred thirty-one".