442004412 has 24 divisors (see below), whose sum is σ = 1035893376. Its totient is φ = 146684848.

The previous prime is 442004401. The next prime is 442004419. The reversal of 442004412 is 214400244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442004419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78408 + ... + 83855.

It is an arithmetic number, because the mean of its divisors is an integer number (43162224).

Almost surely, 2^442004412 is an apocalyptic number.

It is an amenable number.

442004412 is an abundant number, since it is smaller than the sum of its proper divisors (593888964).

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

442004412 is a wasteful number, since it uses less digits than its factorization.

442004412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162497 (or 162495 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 442004412 is about 21023.9009700864. The cubic root of 442004412 is about 761.7436948424.

Adding to 442004412 its reverse (214400244), we get a palindrome (656404656).

The spelling of 442004412 in words is "four hundred forty-two million, four thousand, four hundred twelve".