19000064 has 18 divisors (see below), whose sum is σ = 37926420. Its totient is φ = 9499904.

The previous prime is 19000043. The next prime is 19000073. The reversal of 19000064 is 46000091.

It is a super-2 number, since 2×19000064² = 722004864008192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36854 + ... + 37365.

Almost surely, 2^19000064 is an apocalyptic number.

It is an amenable number.

19000064 is a deficient number, since it is larger than the sum of its proper divisors (18926356).

19000064 is an frugal number, since it uses more digits than its factorization.

19000064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74235 (or 74221 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 19000064 is about 4358.9062848380. The cubic root of 19000064 is about 266.8404644819.

The spelling of 19000064 in words is "nineteen million, sixty-four", and thus it is an aban number.