15199980 has 48 divisors (see below), whose sum is σ = 43268064. Its totient is φ = 3985920.

The previous prime is 15199979. The next prime is 15199991. The reversal of 15199980 is 8999151.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1584 + ... + 5736.

It is an arithmetic number, because the mean of its divisors is an integer number (901418).

Almost surely, 2^15199980 is an apocalyptic number.

15199980 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 15199980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21634032).

15199980 is an abundant number, since it is smaller than the sum of its proper divisors (28068084).

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

15199980 is a wasteful number, since it uses less digits than its factorization.

15199980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4226 (or 4224 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 42.

The square root of 15199980 is about 3898.7151729769. The cubic root of 15199980 is about 247.7123572802.

The spelling of 15199980 in words is "fifteen million, one hundred ninety-nine thousand, nine hundred eighty".