442288042 has 16 divisors (see below), whose sum is σ = 798114240. Its totient is φ = 179575488.

The previous prime is 442288037. The next prime is 442288069. The reversal of 442288042 is 240882244.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 442287989 and 442288007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 831103 + ... + 831634.

It is an arithmetic number, because the mean of its divisors is an integer number (49882140).

Almost surely, 2^442288042 is an apocalyptic number.

442288042 is a deficient number, since it is larger than the sum of its proper divisors (355826198).

442288042 is a wasteful number, since it uses less digits than its factorization.

442288042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662765.

The product of its (nonzero) digits is 32768, while the sum is 34.

The square root of 442288042 is about 21030.6453063143. The cubic root of 442288042 is about 761.9065945493.

The spelling of 442288042 in words is "four hundred forty-two million, two hundred eighty-eight thousand, forty-two".