19800130 has 32 divisors (see below), whose sum is σ = 41731200. Its totient is φ = 6622080.

The previous prime is 19800119. The next prime is 19800139. The reversal of 19800130 is 3100891.

It is not an unprimeable number, because it can be changed into a prime (19800139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 580 + ... + 6319.

It is an arithmetic number, because the mean of its divisors is an integer number (1304100).

Almost surely, 2^19800130 is an apocalyptic number.

19800130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19800130 is an abundant number, since it is smaller than the sum of its proper divisors (21931070).

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

19800130 is a wasteful number, since it uses less digits than its factorization.

19800130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6954.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 19800130 is about 4449.7336998971. The cubic root of 19800130 is about 270.5345149758.

The spelling of 19800130 in words is "nineteen million, eight hundred thousand, one hundred thirty".