442164422 has 16 divisors (see below), whose sum is σ = 767592960. Its totient is φ = 187099848.

The previous prime is 442164419. The next prime is 442164433. The reversal of 442164422 is 224461244.

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, 198788 + ... + 200999.

It is an arithmetic number, because the mean of its divisors is an integer number (47974560).

Almost surely, 2^442164422 is an apocalyptic number.

442164422 is a deficient number, since it is larger than the sum of its proper divisors (325428538).

442164422 is a wasteful number, since it uses less digits than its factorization.

442164422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399875.

The product of its digits is 12288, while the sum is 29.

The square root of 442164422 is about 21027.7060565341. The cubic root of 442164422 is about 761.8356033544.

The spelling of 442164422 in words is "four hundred forty-two million, one hundred sixty-four thousand, four hundred twenty-two".