442406022 has 32 divisors (see below), whose sum is σ = 915984384. Its totient is φ = 142300800.

The previous prime is 442405967. The next prime is 442406023. The reversal of 442406022 is 220604244.

It is a junction number, because it is equal to n+sod(n) for n = 442405983 and 442406001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442406023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65022 + ... + 71502.

It is an arithmetic number, because the mean of its divisors is an integer number (28624512).

Almost surely, 2^442406022 is an apocalyptic number.

442406022 is an abundant number, since it is smaller than the sum of its proper divisors (473578362).

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

442406022 is a wasteful number, since it uses less digits than its factorization.

442406022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6884.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 442406022 is about 21033.4500736327. The cubic root of 442406022 is about 761.9743345287.

The spelling of 442406022 in words is "four hundred forty-two million, four hundred six thousand, twenty-two".