16195890 has 16 divisors (see below), whose sum is σ = 38870208. Its totient is φ = 4318896.

The previous prime is 16195859. The next prime is 16195897. The reversal of 16195890 is 9859161.

16195890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (16195897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269902 + ... + 269961.

It is an arithmetic number, because the mean of its divisors is an integer number (2429388).

Almost surely, 2^16195890 is an apocalyptic number.

16195890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16195890 is an abundant number, since it is smaller than the sum of its proper divisors (22674318).

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

16195890 is a wasteful number, since it uses less digits than its factorization.

16195890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539873.

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 16195890 is about 4024.4117582573. The cubic root of 16195890 is about 253.0083995816.

The spelling of 16195890 in words is "sixteen million, one hundred ninety-five thousand, eight hundred ninety".