10143240440 has 32 divisors (see below), whose sum is σ = 24023466000. Its totient is φ = 3843753984.

The previous prime is 10143240403. The next prime is 10143240449. The reversal of 10143240440 is 4404234101.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10143240449) 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, 6672425 + ... + 6673944.

Almost surely, 2^10143240440 is an apocalyptic number.

10143240440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10143240440 is an abundant number, since it is smaller than the sum of its proper divisors (13880225560).

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

10143240440 is a wasteful number, since it uses less digits than its factorization.

10143240440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13346399 (or 13346395 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 10143240440 its reverse (4404234101), we get a palindrome (14547474541).

The spelling of 10143240440 in words is "ten billion, one hundred forty-three million, two hundred forty thousand, four hundred forty".