14057640 has 96 divisors (see below), whose sum is σ = 48395880. Its totient is φ = 3526656.

The previous prime is 14057597. The next prime is 14057651. The reversal of 14057640 is 4675041.

14057640 is a `hidden beast` number, since 14 + 0 + 5 + 7 + 640 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12574116 + 1483524 = 3546^2 + 1218^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4972 + ... + 7268.

Almost surely, 2^14057640 is an apocalyptic number.

14057640 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 14057640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24197940).

14057640 is an abundant number, since it is smaller than the sum of its proper divisors (34338240).

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

14057640 is a wasteful number, since it uses less digits than its factorization.

14057640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331 (or 2324 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 14057640 is about 3749.3519440031. The cubic root of 14057640 is about 241.3445368533.

It can be divided in two parts, 1405 and 7640, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 14057640 in words is "fourteen million, fifty-seven thousand, six hundred forty".