14001990 has 16 divisors (see below), whose sum is σ = 33604848. Its totient is φ = 3733856.

The previous prime is 14001989. The next prime is 14002003. The reversal of 14001990 is 9910041.

It is a self number, because there is not a number n which added to its sum of digits gives 14001990.

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 7 ways as a sum of consecutive naturals, for example, 233337 + ... + 233396.

It is an arithmetic number, because the mean of its divisors is an integer number (2100303).

Almost surely, 2^14001990 is an apocalyptic number.

14001990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14001990 is an abundant number, since it is smaller than the sum of its proper divisors (19602858).

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

14001990 is a wasteful number, since it uses less digits than its factorization.

14001990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466743.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 14001990 is about 3741.9233022605. The cubic root of 14001990 is about 241.0256453601.

The spelling of 14001990 in words is "fourteen million, one thousand, nine hundred ninety".