10140143440 has 120 divisors (see below), whose sum is σ = 28437108480. Its totient is φ = 3293574912.

The previous prime is 10140143407. The next prime is 10140143441. The reversal of 10140143440 is 4434104101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10140143441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177081 + ... + 227239.

It is an arithmetic number, because the mean of its divisors is an integer number (236975904).

Almost surely, 2^10140143440 is an apocalyptic number.

10140143440 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 10140143440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14218554240).

10140143440 is an abundant number, since it is smaller than the sum of its proper divisors (18296965040).

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

10140143440 is a wasteful number, since it uses less digits than its factorization.

10140143440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50217 (or 50192 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 10140143440 its reverse (4434104101), we get a palindrome (14574247541).

The spelling of 10140143440 in words is "ten billion, one hundred forty million, one hundred forty-three thousand, four hundred forty".