19802044 has 6 divisors (see below), whose sum is σ = 34653584. Its totient is φ = 9901020.

The previous prime is 19802033. The next prime is 19802071. The reversal of 19802044 is 44020891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2475252 + ... + 2475259.

Almost surely, 2^19802044 is an apocalyptic number.

It is an amenable number.

19802044 is a deficient number, since it is larger than the sum of its proper divisors (14851540).

19802044 is a wasteful number, since it uses less digits than its factorization.

19802044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4950515 (or 4950513 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 19802044 is about 4449.9487637500. The cubic root of 19802044 is about 270.5432318610.

The spelling of 19802044 in words is "nineteen million, eight hundred two thousand, forty-four".