442042398 has 48 divisors (see below), whose sum is σ = 1158973920. Its totient is φ = 118867968.

The previous prime is 442042397. The next prime is 442042399. The reversal of 442042398 is 893240244.

It is an interprime number because it is at equal distance from previous prime (442042397) and next prime (442042399).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442042397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101043 + ... + 105326.

It is an arithmetic number, because the mean of its divisors is an integer number (24145290).

Almost surely, 2^442042398 is an apocalyptic number.

442042398 is an abundant number, since it is smaller than the sum of its proper divisors (716931522).

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

442042398 is a wasteful number, since it uses less digits than its factorization.

442042398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206401 (or 206398 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 442042398 is about 21024.8043510516. The cubic root of 442042398 is about 761.7655157159.

The spelling of 442042398 in words is "four hundred forty-two million, forty-two thousand, three hundred ninety-eight".