19000030 has 16 divisors (see below), whose sum is σ = 39085920. Its totient is φ = 6514272.

The previous prime is 19000027. The next prime is 19000031. The reversal of 19000030 is 3000091.

It is a happy number.

It is a super-2 number, since 2×19000030² = 722002280001800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19000031) 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, 135645 + ... + 135784.

It is an arithmetic number, because the mean of its divisors is an integer number (2442870).

Almost surely, 2^19000030 is an apocalyptic number.

19000030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19000030 is an abundant number, since it is smaller than the sum of its proper divisors (20085890).

19000030 is a wasteful number, since it uses less digits than its factorization.

19000030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271443.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 19000030 is about 4358.9023847753. The cubic root of 19000030 is about 266.8403053143.

The spelling of 19000030 in words is "nineteen million, thirty", and thus it is an aban number and an uban number.