19800472 has 16 divisors (see below), whose sum is σ = 37220400. Its totient is φ = 9875040.

The previous prime is 19800467. The next prime is 19800491. The reversal of 19800472 is 27400891.

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, 429 + ... + 6307.

It is an arithmetic number, because the mean of its divisors is an integer number (2326275).

Almost surely, 2^19800472 is an apocalyptic number.

It is an amenable number.

19800472 is a deficient number, since it is larger than the sum of its proper divisors (17419928).

19800472 is a wasteful number, since it uses less digits than its factorization.

19800472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6306 (or 6302 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 19800472 is about 4449.7721289972. The cubic root of 19800472 is about 270.5360725796.

The spelling of 19800472 in words is "nineteen million, eight hundred thousand, four hundred seventy-two".