442142442 has 128 divisors (see below), whose sum is σ = 1176698880. Its totient is φ = 120424320.

The previous prime is 442142413. The next prime is 442142471. The reversal of 442142442 is 244241244.

442142442 is a `hidden beast` number, since 4 + 4 + 214 + 2 + 442 = 666.

It is an interprime number because it is at equal distance from previous prime (442142413) and next prime (442142471).

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 728103 + ... + 728709.

It is an arithmetic number, because the mean of its divisors is an integer number (9192960).

Almost surely, 2^442142442 is an apocalyptic number.

442142442 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 442142442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (588349440).

442142442 is an abundant number, since it is smaller than the sum of its proper divisors (734556438).

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

442142442 is a wasteful number, since it uses less digits than its factorization.

442142442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 707 counting only the distinct ones).

The product of its digits is 8192, while the sum is 27.

The square root of 442142442 is about 21027.1834062482. The cubic root of 442142442 is about 761.8229795255.

Adding to 442142442 its reverse (244241244), we get a palindrome (686383686).

It can be divided in two parts, 44214 and 2442, that added together give a 6-th power (46656 = 6⁶).

The spelling of 442142442 in words is "four hundred forty-two million, one hundred forty-two thousand, four hundred forty-two".