10440140 has 24 divisors (see below), whose sum is σ = 22075872. Its totient is φ = 4147200.

The previous prime is 10440127. The next prime is 10440161. The reversal of 10440140 is 4104401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1292 + ... + 4748.

It is an arithmetic number, because the mean of its divisors is an integer number (919828).

Almost surely, 2^10440140 is an apocalyptic number.

10440140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10440140 is an abundant number, since it is smaller than the sum of its proper divisors (11635732).

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

10440140 is a wasteful number, since it uses less digits than its factorization.

10440140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3617 (or 3615 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 10440140 is about 3231.1205486642. The cubic root of 10440140 is about 218.5590398785.

Adding to 10440140 its reverse (4104401), we get a palindrome (14544541).

The spelling of 10440140 in words is "ten million, four hundred forty thousand, one hundred forty".