14257638 has 48 divisors (see below), whose sum is σ = 33246720. Its totient is φ = 4401648.

The previous prime is 14257637. The next prime is 14257651. The reversal of 14257638 is 83675241.

14257638 is a `hidden beast` number, since 14 + 2 + 5 + 7 + 638 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14257637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15631 + ... + 16517.

It is an arithmetic number, because the mean of its divisors is an integer number (692640).

Almost surely, 2^14257638 is an apocalyptic number.

14257638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 14257638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16623360).

14257638 is an abundant number, since it is smaller than the sum of its proper divisors (18989082).

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

14257638 is a wasteful number, since it uses less digits than its factorization.

14257638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961 (or 958 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 14257638 is about 3775.9287599212. The cubic root of 14257638 is about 242.4836875696.

The spelling of 14257638 in words is "fourteen million, two hundred fifty-seven thousand, six hundred thirty-eight".