844394022 has 12 divisors (see below), whose sum is σ = 1829520420. Its totient is φ = 281464668.

The previous prime is 844393981. The next prime is 844394069. The reversal of 844394022 is 220493448.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23455372 + ... + 23455407.

It is an arithmetic number, because the mean of its divisors is an integer number (152460035).

Almost surely, 2^844394022 is an apocalyptic number.

844394022 is an abundant number, since it is smaller than the sum of its proper divisors (985126398).

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

844394022 is a wasteful number, since it uses less digits than its factorization.

844394022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46910787 (or 46910784 counting only the distinct ones).

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

The square root of 844394022 is about 29058.4586996627. The cubic root of 844394022 is about 945.1811460921.

The spelling of 844394022 in words is "eight hundred forty-four million, three hundred ninety-four thousand, twenty-two".