442842015 has 64 divisors (see below), whose sum is σ = 890634240. Its totient is φ = 182528640.

The previous prime is 442842007. The next prime is 442842053. The reversal of 442842015 is 510248244.

It is not a de Polignac number, because 442842015 - 2³ = 442842007 is a prime.

It is a super-2 number, since 2×442842015² = 392218100498520450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 145176 + ... + 148194.

It is an arithmetic number, because the mean of its divisors is an integer number (13916160).

Almost surely, 2^442842015 is an apocalyptic number.

442842015 is an abundant number, since it is smaller than the sum of its proper divisors (447792225).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442842015 is a wasteful number, since it uses less digits than its factorization.

442842015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172.

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 442842015 is about 21043.8117982461. The cubic root of 442842015 is about 762.2245619864.

The spelling of 442842015 in words is "four hundred forty-two million, eight hundred forty-two thousand, fifteen".