10440421140 has 96 divisors (see below), whose sum is σ = 31611492864. Its totient is φ = 2564577280.

The previous prime is 10440421139. The next prime is 10440421141. The reversal of 10440421140 is 4112404401.

It is an interprime number because it is at equal distance from previous prime (10440421139) and next prime (10440421141).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10440421141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60951 + ... + 156830.

It is an arithmetic number, because the mean of its divisors is an integer number (329286384).

Almost surely, 2^10440421140 is an apocalyptic number.

10440421140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10440421140 is an abundant number, since it is smaller than the sum of its proper divisors (21171071724).

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

10440421140 is a wasteful number, since it uses less digits than its factorization.

10440421140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217857 (or 217855 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 10440421140 its reverse (4112404401), we get a palindrome (14552825541).

The spelling of 10440421140 in words is "ten billion, four hundred forty million, four hundred twenty-one thousand, one hundred forty".