16193920 has 32 divisors (see below), whose sum is σ = 38715120. Its totient is φ = 6477312.

The previous prime is 16193869. The next prime is 16193921. The reversal of 16193920 is 2939161.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16193921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12012 + ... + 13291.

Almost surely, 2^16193920 is an apocalyptic number.

16193920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16193920 is an abundant number, since it is smaller than the sum of its proper divisors (22521200).

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

16193920 is an equidigital number, since it uses as much as digits as its factorization.

16193920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25322 (or 25310 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 16193920 is about 4024.1669945468. The cubic root of 16193920 is about 252.9981408728.

The spelling of 16193920 in words is "sixteen million, one hundred ninety-three thousand, nine hundred twenty".