15241980 has 48 divisors (see below), whose sum is σ = 45962784. Its totient is φ = 3751680.

The previous prime is 15241973. The next prime is 15241997. The reversal of 15241980 is 8914251.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 8991 + ... + 10550.

It is an arithmetic number, because the mean of its divisors is an integer number (957558).

Almost surely, 2^15241980 is an apocalyptic number.

15241980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15241980 is an abundant number, since it is smaller than the sum of its proper divisors (30720804).

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

15241980 is a wasteful number, since it uses less digits than its factorization.

15241980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19566 (or 19564 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 15241980 is about 3904.0978471345. The cubic root of 15241980 is about 247.9403038766.

The spelling of 15241980 in words is "fifteen million, two hundred forty-one thousand, nine hundred eighty".