19937472 has 28 divisors (see below), whose sum is σ = 52751736. Its totient is φ = 6645760.

The previous prime is 19937461. The next prime is 19937483. The reversal of 19937472 is 27473991.

It is an interprime number because it is at equal distance from previous prime (19937461) and next prime (19937483).

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, 51729 + ... + 52112.

Almost surely, 2^19937472 is an apocalyptic number.

19937472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19937472 is an abundant number, since it is smaller than the sum of its proper divisors (32814264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19937472 is a wasteful number, since it uses less digits than its factorization.

19937472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103856 (or 103846 counting only the distinct ones).

The product of its digits is 95256, while the sum is 42.

The square root of 19937472 is about 4465.1396394738. The cubic root of 19937472 is about 271.1585878414.

The spelling of 19937472 in words is "nineteen million, nine hundred thirty-seven thousand, four hundred seventy-two".