18980300 has 36 divisors (see below), whose sum is σ = 41898360. Its totient is φ = 7461120.

The previous prime is 18980293. The next prime is 18980309. The reversal of 18980300 is 308981.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18980309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4292 + ... + 7508.

Almost surely, 2^18980300 is an apocalyptic number.

18980300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18980300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20949180).

18980300 is an abundant number, since it is smaller than the sum of its proper divisors (22918060).

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

18980300 is a wasteful number, since it uses less digits than its factorization.

18980300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3290 (or 3283 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 18980300 is about 4356.6386125085. The cubic root of 18980300 is about 266.7479092739.

The spelling of 18980300 in words is "eighteen million, nine hundred eighty thousand, three hundred".