19937492 has 6 divisors (see below), whose sum is σ = 34890618. Its totient is φ = 9968744.

The previous prime is 19937483. The next prime is 19937503. The reversal of 19937492 is 29473991.

It can be written as a sum of positive squares in only one way, i.e., 19749136 + 188356 = 4444^2 + 434^2 .

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, 2492183 + ... + 2492190.

It is an arithmetic number, because the mean of its divisors is an integer number (5815103).

Almost surely, 2^19937492 is an apocalyptic number.

It is an amenable number.

19937492 is a deficient number, since it is larger than the sum of its proper divisors (14953126).

19937492 is a wasteful number, since it uses less digits than its factorization.

19937492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4984377 (or 4984375 counting only the distinct ones).

The product of its digits is 122472, while the sum is 44.

The square root of 19937492 is about 4465.1418790448. The cubic root of 19937492 is about 271.1586785110.

The spelling of 19937492 in words is "nineteen million, nine hundred thirty-seven thousand, four hundred ninety-two".