16992400 has 60 divisors (see below), whose sum is σ = 42622272. Its totient is φ = 6497920.

The previous prime is 16992397. The next prime is 16992419. The reversal of 16992400 is 429961.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8277 + ... + 10123.

Almost surely, 2^16992400 is an apocalyptic number.

16992400 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 16992400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21311136).

16992400 is an abundant number, since it is smaller than the sum of its proper divisors (25629872).

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

16992400 is a wasteful number, since it uses less digits than its factorization.

16992400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888 (or 1877 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 16992400 is about 4122.1838872132. The cubic root of 16992400 is about 257.0898362170.

The spelling of 16992400 in words is "sixteen million, nine hundred ninety-two thousand, four hundred".