14113640 has 16 divisors (see below), whose sum is σ = 31755780. Its totient is φ = 5645440.

The previous prime is 14113609. The next prime is 14113657. The reversal of 14113640 is 4631141.

It can be written as a sum of positive squares in 2 ways, for example, as 13557124 + 556516 = 3682^2 + 746^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176381 + ... + 176460.

Almost surely, 2^14113640 is an apocalyptic number.

14113640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14113640 is an abundant number, since it is smaller than the sum of its proper divisors (17642140).

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

14113640 is a wasteful number, since it uses less digits than its factorization.

14113640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352852 (or 352848 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 14113640 is about 3756.8124786846. The cubic root of 14113640 is about 241.6645855284.

Adding to 14113640 its reverse (4631141), we get a palindrome (18744781).

The spelling of 14113640 in words is "fourteen million, one hundred thirteen thousand, six hundred forty".