19975244 has 6 divisors (see below), whose sum is σ = 34956684. Its totient is φ = 9987620.

The previous prime is 19975237. The next prime is 19975261. The reversal of 19975244 is 44257991.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2496902 + ... + 2496909.

It is an arithmetic number, because the mean of its divisors is an integer number (5826114).

Almost surely, 2^19975244 is an apocalyptic number.

It is an amenable number.

19975244 is a deficient number, since it is larger than the sum of its proper divisors (14981440).

19975244 is a wasteful number, since it uses less digits than its factorization.

19975244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4993815 (or 4993813 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 19975244 is about 4469.3672930293. The cubic root of 19975244 is about 271.3297185469.

The spelling of 19975244 in words is "nineteen million, nine hundred seventy-five thousand, two hundred forty-four".