14157440 has 64 divisors (see below), whose sum is σ = 36940320. Its totient is φ = 5145600.

The previous prime is 14157439. The next prime is 14157469. The reversal of 14157440 is 4475141.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6035 + ... + 8045.

Almost surely, 2^14157440 is an apocalyptic number.

14157440 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 14157440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18470160).

14157440 is an abundant number, since it is smaller than the sum of its proper divisors (22782880).

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

14157440 is a wasteful number, since it uses less digits than its factorization.

14157440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041 (or 2029 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 14157440 is about 3762.6373729075. The cubic root of 14157440 is about 241.9143197812.

The spelling of 14157440 in words is "fourteen million, one hundred fifty-seven thousand, four hundred forty".