15980032 has 60 divisors (see below), whose sum is σ = 33943140. Its totient is φ = 7513088.

The previous prime is 15980023. The next prime is 15980033. The reversal of 15980032 is 23008951.

It is a super-2 number, since 2×15980032² = 510722845442048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15980033) 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 5 ways as a sum of consecutive naturals, for example, 270819 + ... + 270877.

It is an arithmetic number, because the mean of its divisors is an integer number (565719).

Almost surely, 2^15980032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15980032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16971570).

15980032 is an abundant number, since it is smaller than the sum of its proper divisors (17963108).

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

15980032 is an frugal number, since it uses more digits than its factorization.

15980032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 15980032 is about 3997.5032207617. The cubic root of 15980032 is about 251.8793409100.

Adding to 15980032 its reverse (23008951), we get a palindrome (38988983).

The spelling of 15980032 in words is "fifteen million, nine hundred eighty thousand, thirty-two".