19394272 has 24 divisors (see below), whose sum is σ = 39501000. Its totient is φ = 9362304.

The previous prime is 19394233. The next prime is 19394281. The reversal of 19394272 is 27249391.

It is a super-2 number, since 2×19394272² = 752275572819968, which contains 22 as substring.

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, 9522 + ... + 11377.

It is an arithmetic number, because the mean of its divisors is an integer number (1645875).

Almost surely, 2^19394272 is an apocalyptic number.

It is an amenable number.

19394272 is an abundant number, since it is smaller than the sum of its proper divisors (20106728).

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

19394272 is a wasteful number, since it uses less digits than its factorization.

19394272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20938 (or 20930 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The square root of 19394272 is about 4403.8928234007. The cubic root of 19394272 is about 268.6732903837.

The spelling of 19394272 in words is "nineteen million, three hundred ninety-four thousand, two hundred seventy-two".