15390980 has 24 divisors (see below), whose sum is σ = 35259840. Its totient is φ = 5596640.

The previous prime is 15390961. The next prime is 15390989. The reversal of 15390980 is 8909351.

It is a self number, because there is not a number n which added to its sum of digits gives 15390980.

It is not an unprimeable number, because it can be changed into a prime (15390989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34760 + ... + 35199.

It is an arithmetic number, because the mean of its divisors is an integer number (1469160).

Almost surely, 2^15390980 is an apocalyptic number.

15390980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15390980 is an abundant number, since it is smaller than the sum of its proper divisors (19868860).

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

15390980 is a wasteful number, since it uses less digits than its factorization.

15390980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69979 (or 69977 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 15390980 is about 3923.1339513200. The cubic root of 15390980 is about 248.7456098819.

The spelling of 15390980 in words is "fifteen million, three hundred ninety thousand, nine hundred eighty".