442022392 has 32 divisors (see below), whose sum is σ = 947865600. Its totient is φ = 189303264.

The previous prime is 442022369. The next prime is 442022419. The reversal of 442022392 is 293220244.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 442022392.

It is a congruent number.

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, 150813 + ... + 153715.

It is an arithmetic number, because the mean of its divisors is an integer number (29620800).

Almost surely, 2^442022392 is an apocalyptic number.

It is an amenable number.

442022392 is an abundant number, since it is smaller than the sum of its proper divisors (505843208).

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

442022392 is a wasteful number, since it uses less digits than its factorization.

442022392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5635 (or 5631 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 442022392 is about 21024.3285742970. The cubic root of 442022392 is about 761.7540235220.

The spelling of 442022392 in words is "four hundred forty-two million, twenty-two thousand, three hundred ninety-two".