19972882 has 8 divisors (see below), whose sum is σ = 30268476. Its totient is φ = 9883392.

The previous prime is 19972861. The next prime is 19972889. The reversal of 19972882 is 28827991.

It can be written as a sum of positive squares in 2 ways, for example, as 19900521 + 72361 = 4461^2 + 269^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (19972889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51283 + ... + 51670.

Almost surely, 2^19972882 is an apocalyptic number.

19972882 is a deficient number, since it is larger than the sum of its proper divisors (10295594).

19972882 is a wasteful number, since it uses less digits than its factorization.

19972882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103052.

The product of its digits is 145152, while the sum is 46.

The square root of 19972882 is about 4469.1030419985. The cubic root of 19972882 is about 271.3190235410.

The spelling of 19972882 in words is "nineteen million, nine hundred seventy-two thousand, eight hundred eighty-two".