14372640 has 120 divisors (see below), whose sum is σ = 50769180. Its totient is φ = 3829248.

The previous prime is 14372629. The next prime is 14372653. The reversal of 14372640 is 4627341.

14372640 is a `hidden beast` number, since 14 + 3 + 7 + 2 + 640 = 666.

14372640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12194064 + 2178576 = 3492^2 + 1476^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12406 + ... + 13514.

Almost surely, 2^14372640 is an apocalyptic number.

14372640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14372640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25384590).

14372640 is an abundant number, since it is smaller than the sum of its proper divisors (36396540).

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

14372640 is a wasteful number, since it uses less digits than its factorization.

14372640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136 (or 1119 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 14372640 is about 3791.1264816674. The cubic root of 14372640 is about 243.1338996837.

Adding to 14372640 its reverse (4627341), we get a palindrome (18999981).

The spelling of 14372640 in words is "fourteen million, three hundred seventy-two thousand, six hundred forty".