19942492 has 6 divisors (see below), whose sum is σ = 34899368. Its totient is φ = 9971244.

The previous prime is 19942487. The next prime is 19942499. The reversal of 19942492 is 29424991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19942499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2492808 + ... + 2492815.

Almost surely, 2^19942492 is an apocalyptic number.

It is an amenable number.

19942492 is a deficient number, since it is larger than the sum of its proper divisors (14956876).

19942492 is a wasteful number, since it uses less digits than its factorization.

19942492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4985627 (or 4985625 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 19942492 is about 4465.7017365695. The cubic root of 19942492 is about 271.1813440177.

The spelling of 19942492 in words is "nineteen million, nine hundred forty-two thousand, four hundred ninety-two".