16198980 has 48 divisors (see below), whose sum is σ = 51838080. Its totient is φ = 3702528.

The previous prime is 16198951. The next prime is 16198991. The reversal of 16198980 is 8989161.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18865 + ... + 19704.

It is an arithmetic number, because the mean of its divisors is an integer number (1079960).

Almost surely, 2^16198980 is an apocalyptic number.

16198980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16198980 is an abundant number, since it is smaller than the sum of its proper divisors (35639100).

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

16198980 is a wasteful number, since it uses less digits than its factorization.

16198980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38588 (or 38586 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 16198980 is about 4024.7956469863. The cubic root of 16198980 is about 253.0244889771.

The spelling of 16198980 in words is "sixteen million, one hundred ninety-eight thousand, nine hundred eighty".