4031322440 has 32 divisors (see below), whose sum is σ = 9074187000. Its totient is φ = 1611869184.

The previous prime is 4031322431. The next prime is 4031322443. The reversal of 4031322440 is 442231304.

It can be written as a sum of positive squares in 4 ways, for example, as 2024820004 + 2006502436 = 44998^2 + 44794^2 .

It is not an unprimeable number, because it can be changed into a prime (4031322443) 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, 85046 + ... + 123674.

Almost surely, 2^4031322440 is an apocalyptic number.

4031322440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4031322440 is an abundant number, since it is smaller than the sum of its proper divisors (5042864560).

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

4031322440 is a wasteful number, since it uses less digits than its factorization.

4031322440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41249 (or 41245 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 4031322440 is about 63492.6959578816. The cubic root of 4031322440 is about 1591.5337230714.

Adding to 4031322440 its reverse (442231304), we get a palindrome (4473553744).

The spelling of 4031322440 in words is "four billion, thirty-one million, three hundred twenty-two thousand, four hundred forty".