16487980 has 12 divisors (see below), whose sum is σ = 34624800. Its totient is φ = 6595184.

The previous prime is 16487971. The next prime is 16488007. The reversal of 16487980 is 8978461.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412180 + ... + 412219.

It is an arithmetic number, because the mean of its divisors is an integer number (2885400).

Almost surely, 2^16487980 is an apocalyptic number.

16487980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16487980 is an abundant number, since it is smaller than the sum of its proper divisors (18136820).

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

16487980 is a wasteful number, since it uses less digits than its factorization.

16487980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824408 (or 824406 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 16487980 is about 4060.5393730390. The cubic root of 16487980 is about 254.5203337145.

The spelling of 16487980 in words is "sixteen million, four hundred eighty-seven thousand, nine hundred eighty".