14187890 has 16 divisors (see below), whose sum is σ = 26082432. Its totient is φ = 5554224.

The previous prime is 14187881. The next prime is 14187913. The reversal of 14187890 is 9878141.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14624 + ... + 15563.

It is an arithmetic number, because the mean of its divisors is an integer number (1630152).

Almost surely, 2^14187890 is an apocalyptic number.

14187890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14187890 is a deficient number, since it is larger than the sum of its proper divisors (11894542).

14187890 is a wasteful number, since it uses less digits than its factorization.

14187890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30241.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 14187890 is about 3766.6815633924. The cubic root of 14187890 is about 242.0876330395.

The spelling of 14187890 in words is "fourteen million, one hundred eighty-seven thousand, eight hundred ninety".