14402540 has 12 divisors (see below), whose sum is σ = 30245376. Its totient is φ = 5761008.

The previous prime is 14402501. The next prime is 14402567. The reversal of 14402540 is 4520441.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 720127 = 14402540 / (1 + 4 + 4 + 0 + 2 + 5 + 4 + 0).

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, 360044 + ... + 360083.

It is an arithmetic number, because the mean of its divisors is an integer number (2520448).

Almost surely, 2^14402540 is an apocalyptic number.

14402540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14402540 is an abundant number, since it is smaller than the sum of its proper divisors (15842836).

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

14402540 is a wasteful number, since it uses less digits than its factorization.

14402540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720136 (or 720134 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 14402540 is about 3795.0678518308. The cubic root of 14402540 is about 243.3023834200.

Adding to 14402540 its reverse (4520441), we get a palindrome (18922981).

The spelling of 14402540 in words is "fourteen million, four hundred two thousand, five hundred forty".