19239964 has 12 divisors (see below), whose sum is σ = 34756288. Its totient is φ = 9309600.

The previous prime is 19239929. The next prime is 19240019. The reversal of 19239964 is 46993291.

It is a self number, because there is not a number n which added to its sum of digits gives 19239964.

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, 77457 + ... + 77704.

Almost surely, 2^19239964 is an apocalyptic number.

It is an amenable number.

19239964 is a deficient number, since it is larger than the sum of its proper divisors (15516324).

19239964 is a wasteful number, since it uses less digits than its factorization.

19239964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155196 (or 155194 counting only the distinct ones).

The product of its digits is 104976, while the sum is 43.

The square root of 19239964 is about 4386.3383362436. The cubic root of 19239964 is about 267.9588375186.

The spelling of 19239964 in words is "nineteen million, two hundred thirty-nine thousand, nine hundred sixty-four".