10143234440 has 32 divisors (see below), whose sum is σ = 22828069080. Its totient is φ = 4056264192.

The previous prime is 10143234403. The next prime is 10143234463. The reversal of 10143234440 is 4443234101.

It can be written as a sum of positive squares in 4 ways, for example, as 9382247044 + 760987396 = 96862^2 + 27586^2 .

It is a super-2 number, since 2×10143234440² (a number of 21 digits) contains 22 as substring.

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, 138614 + ... + 198746.

Almost surely, 2^10143234440 is an apocalyptic number.

10143234440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10143234440 is an abundant number, since it is smaller than the sum of its proper divisors (12684834640).

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

10143234440 is a wasteful number, since it uses less digits than its factorization.

10143234440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64361 (or 64357 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 10143234440 its reverse (4443234101), we get a palindrome (14586468541).

The spelling of 10143234440 in words is "ten billion, one hundred forty-three million, two hundred thirty-four thousand, four hundred forty".