14261640 has 64 divisors (see below), whose sum is σ = 45308160. Its totient is φ = 3578880.

The previous prime is 14261579. The next prime is 14261651. The reversal of 14261640 is 4616241.

14261640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 14261640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1456 + ... + 5535.

It is an arithmetic number, because the mean of its divisors is an integer number (707940).

Almost surely, 2^14261640 is an apocalyptic number.

14261640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14261640 is an abundant number, since it is smaller than the sum of its proper divisors (31046520).

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

14261640 is a wasteful number, since it uses less digits than its factorization.

14261640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7022 (or 7018 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 14261640 is about 3776.4586585848. The cubic root of 14261640 is about 242.5063731630.

Adding to 14261640 its reverse (4616241), we get a palindrome (18877881).

The spelling of 14261640 in words is "fourteen million, two hundred sixty-one thousand, six hundred forty".