16827920 has 40 divisors (see below), whose sum is σ = 41187840. Its totient is φ = 6376320.

The previous prime is 16827919. The next prime is 16827931. The reversal of 16827920 is 2972861.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4016 + ... + 7055.

It is an arithmetic number, because the mean of its divisors is an integer number (1029696).

Almost surely, 2^16827920 is an apocalyptic number.

16827920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16827920 is an abundant number, since it is smaller than the sum of its proper divisors (24359920).

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

16827920 is a wasteful number, since it uses less digits than its factorization.

16827920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11103 (or 11097 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 16827920 is about 4102.1847837463. The cubic root of 16827920 is about 256.2576345138.

The spelling of 16827920 in words is "sixteen million, eight hundred twenty-seven thousand, nine hundred twenty".