14871990 has 96 divisors (see below), whose sum is σ = 42418944. Its totient is φ = 3326400.

The previous prime is 14871979. The next prime is 14872009. The reversal of 14871990 is 9917841.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 98415 + ... + 98565.

It is an arithmetic number, because the mean of its divisors is an integer number (441864).

Almost surely, 2^14871990 is an apocalyptic number.

14871990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 14871990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21209472).

14871990 is an abundant number, since it is smaller than the sum of its proper divisors (27546954).

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

14871990 is a wasteful number, since it uses less digits than its factorization.

14871990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 14871990 is about 3856.4219167513. The cubic root of 14871990 is about 245.9176470985.

The spelling of 14871990 in words is "fourteen million, eight hundred seventy-one thousand, nine hundred ninety".