1040312144 has 60 divisors (see below), whose sum is σ = 2156285724. Its totient is φ = 486100992.

The previous prime is 1040312137. The next prime is 1040312179. The reversal of 1040312144 is 4412130401.

It can be written as a sum of positive squares in 6 ways, for example, as 135024400 + 905287744 = 11620^2 + 30088^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 725252 + ... + 726684.

Almost surely, 2^1040312144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1040312144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1078142862).

1040312144 is an abundant number, since it is smaller than the sum of its proper divisors (1115973580).

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

1040312144 is a wasteful number, since it uses less digits than its factorization.

1040312144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632 (or 1609 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1040312144 is about 32253.8702173863. The cubic root of 1040312144 is about 1013.2607563825.

Adding to 1040312144 its reverse (4412130401), we get a palindrome (5452442545).

The spelling of 1040312144 in words is "one billion, forty million, three hundred twelve thousand, one hundred forty-four".