14387690 has 16 divisors (see below), whose sum is σ = 26044200. Its totient is φ = 5722560.

The previous prime is 14387669. The next prime is 14387699. The reversal of 14387690 is 9678341.

It can be written as a sum of positive squares in 4 ways, for example, as 6775609 + 7612081 = 2603^2 + 2759^2 .

It is a super-2 number, since 2×14387690² = 414011247072200, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (14387699) 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, 2165 + ... + 5784.

Almost surely, 2^14387690 is an apocalyptic number.

14387690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14387690 is a deficient number, since it is larger than the sum of its proper divisors (11656510).

14387690 is a wasteful number, since it uses less digits than its factorization.

14387690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8137.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 14387690 is about 3793.1108604943. The cubic root of 14387690 is about 243.2187342195.

The spelling of 14387690 in words is "fourteen million, three hundred eighty-seven thousand, six hundred ninety".