14415140 has 24 divisors (see below), whose sum is σ = 30498552. Its totient is φ = 5722880.

The previous prime is 14415139. The next prime is 14415143. The reversal of 14415140 is 4151441.

It can be written as a sum of positive squares in 4 ways, for example, as 3232804 + 11182336 = 1798^2 + 3344^2 .

It is a super-2 number, since 2×14415140² = 415592522439200, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (14415143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110 + ... + 5370.

It is an arithmetic number, because the mean of its divisors is an integer number (1270773).

Almost surely, 2^14415140 is an apocalyptic number.

14415140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14415140 is an abundant number, since it is smaller than the sum of its proper divisors (16083412).

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

14415140 is a wasteful number, since it uses less digits than its factorization.

14415140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5407 (or 5405 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 14415140 is about 3796.7275382887. The cubic root of 14415140 is about 243.3733134200.

Adding to 14415140 its reverse (4151441), we get a palindrome (18566581).

The spelling of 14415140 in words is "fourteen million, four hundred fifteen thousand, one hundred forty".