16881324 has 48 divisors (see below), whose sum is σ = 40870368. Its totient is φ = 5419008.

The previous prime is 16881317. The next prime is 16881353. The reversal of 16881324 is 42318861.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85594 + ... + 85790.

It is an arithmetic number, because the mean of its divisors is an integer number (851466).

Almost surely, 2^16881324 is an apocalyptic number.

It is an amenable number.

16881324 is an abundant number, since it is smaller than the sum of its proper divisors (23989044).

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

16881324 is a wasteful number, since it uses less digits than its factorization.

16881324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 432 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 16881324 is about 4108.6888419543. The cubic root of 16881324 is about 256.5284291491.

It can be divided in two parts, 16881 and 324, that added together give a triangular number (17205 = T₁₈₅).

The spelling of 16881324 in words is "sixteen million, eight hundred eighty-one thousand, three hundred twenty-four".