19012988 has 12 divisors (see below), whose sum is σ = 33303480. Its totient is φ = 9497712.

The previous prime is 19012969. The next prime is 19013017. The reversal of 19012988 is 88921091.

It is a super-2 number, since 2×19012988² = 722987425376288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 6503 + ... + 8961.

It is an arithmetic number, because the mean of its divisors is an integer number (2775290).

Almost surely, 2^19012988 is an apocalyptic number.

It is an amenable number.

19012988 is a deficient number, since it is larger than the sum of its proper divisors (14290492).

19012988 is a wasteful number, since it uses less digits than its factorization.

19012988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4396 (or 4394 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 38.

The square root of 19012988 is about 4360.3885148000. The cubic root of 19012988 is about 266.9009531294.

The spelling of 19012988 in words is "nineteen million, twelve thousand, nine hundred eighty-eight".