14889640 has 16 divisors (see below), whose sum is σ = 33501780. Its totient is φ = 5955840.

The previous prime is 14889631. The next prime is 14889643. The reversal of 14889640 is 4698841.

It can be written as a sum of positive squares in 2 ways, for example, as 14884164 + 5476 = 3858^2 + 74^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 372241 = 14889640 / (1 + 4 + 8 + 8 + 9 + 6 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 14889593 and 14889602.

It is not an unprimeable number, because it can be changed into a prime (14889643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186081 + ... + 186160.

Almost surely, 2^14889640 is an apocalyptic number.

14889640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14889640 is an abundant number, since it is smaller than the sum of its proper divisors (18612140).

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

14889640 is a wasteful number, since it uses less digits than its factorization.

14889640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372252 (or 372248 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 14889640 is about 3858.7096288785. The cubic root of 14889640 is about 246.0148932310.

The spelling of 14889640 in words is "fourteen million, eight hundred eighty-nine thousand, six hundred forty".