15948980 has 54 divisors (see below), whose sum is σ = 36116514. Its totient is φ = 5915232.

The previous prime is 15948979. The next prime is 15948983. The reversal of 15948980 is 8984951.

It can be written as a sum of positive squares in only one way, i.e., 12759184 + 3189796 = 3572^2 + 1786^2 .

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15948983) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 339317 + ... + 339363.

Almost surely, 2^15948980 is an apocalyptic number.

15948980 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 15948980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18058257).

15948980 is an abundant number, since it is smaller than the sum of its proper divisors (20167534).

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

15948980 is a wasteful number, since it uses less digits than its factorization.

15948980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 15948980 is about 3993.6174078146. The cubic root of 15948980 is about 251.7160865673.

Multiplying 15948980 by its product of nonzero digits (103680), we get a square (1653590246400 = 1285920²).

The spelling of 15948980 in words is "fifteen million, nine hundred forty-eight thousand, nine hundred eighty".