19528972 has 12 divisors (see below), whose sum is σ = 34209000. Its totient is φ = 9754976.

The previous prime is 19528931. The next prime is 19528991. The reversal of 19528972 is 27982591.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4368 + ... + 7624.

It is an arithmetic number, because the mean of its divisors is an integer number (2850750).

Almost surely, 2^19528972 is an apocalyptic number.

It is an amenable number.

19528972 is a deficient number, since it is larger than the sum of its proper divisors (14680028).

19528972 is a wasteful number, since it uses less digits than its factorization.

19528972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4760 (or 4758 counting only the distinct ones).

The product of its digits is 90720, while the sum is 43.

The square root of 19528972 is about 4419.1596486210. The cubic root of 19528972 is about 269.2938658688.

The spelling of 19528972 in words is "nineteen million, five hundred twenty-eight thousand, nine hundred seventy-two".