19006872 has 32 divisors (see below), whose sum is σ = 47626800. Its totient is φ = 6321024.

The previous prime is 19006853. The next prime is 19006873. The reversal of 19006872 is 27860091.

It is a super-2 number, since 2×19006872² = 722522366448768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19006873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16458 + ... + 17574.

Almost surely, 2^19006872 is an apocalyptic number.

19006872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19006872 is an abundant number, since it is smaller than the sum of its proper divisors (28619928).

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

19006872 is a wasteful number, since it uses less digits than its factorization.

19006872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835 (or 1831 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 19006872 is about 4359.6871447387. The cubic root of 19006872 is about 266.8723316192.

The spelling of 19006872 in words is "nineteen million, six thousand, eight hundred seventy-two".