14091990 has 32 divisors (see below), whose sum is σ = 36896256. Its totient is φ = 3416160.

The previous prime is 14091983. The next prime is 14092019. The reversal of 14091990 is 9919041.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21022 + ... + 21681.

It is an arithmetic number, because the mean of its divisors is an integer number (1153008).

Almost surely, 2^14091990 is an apocalyptic number.

14091990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14091990 is an abundant number, since it is smaller than the sum of its proper divisors (22804266).

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

14091990 is a wasteful number, since it uses less digits than its factorization.

14091990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42724.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 14091990 is about 3753.9299407421. The cubic root of 14091990 is about 241.5409529801.

The spelling of 14091990 in words is "fourteen million, ninety-one thousand, nine hundred ninety".