19401244 has 12 divisors (see below), whose sum is σ = 34007344. Its totient is φ = 9684864.

The previous prime is 19401229. The next prime is 19401251. The reversal of 19401244 is 44210491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 912 + ... + 6295.

Almost surely, 2^19401244 is an apocalyptic number.

It is an amenable number.

19401244 is a deficient number, since it is larger than the sum of its proper divisors (14606100).

19401244 is a wasteful number, since it uses less digits than its factorization.

19401244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7884 (or 7882 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 19401244 is about 4404.6843246707. The cubic root of 19401244 is about 268.7054814306.

The spelling of 19401244 in words is "nineteen million, four hundred one thousand, two hundred forty-four".