14639740 has 24 divisors (see below), whose sum is σ = 31035312. Its totient is φ = 5800320.

The previous prime is 14639731. The next prime is 14639749. The reversal of 14639740 is 4793641.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (14639731) and next prime (14639749).

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 14639696 and 14639705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14639749) 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, 1281 + ... + 5560.

It is an arithmetic number, because the mean of its divisors is an integer number (1293138).

Almost surely, 2^14639740 is an apocalyptic number.

14639740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14639740 is an abundant number, since it is smaller than the sum of its proper divisors (16395572).

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

14639740 is a wasteful number, since it uses less digits than its factorization.

14639740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6957 (or 6955 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 14639740 is about 3826.1913177467. The cubic root of 14639740 is about 244.6307919428.

The spelling of 14639740 in words is "fourteen million, six hundred thirty-nine thousand, seven hundred forty".