4040312320 has 80 divisors (see below), whose sum is σ = 10568015568. Its totient is φ = 1469194240.

The previous prime is 4040312317. The next prime is 4040312351. The reversal of 4040312320 is 232130404.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43579 + ... + 99898.

Almost surely, 2^4040312320 is an apocalyptic number.

4040312320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4040312320 is an abundant number, since it is smaller than the sum of its proper divisors (6527703248).

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

4040312320 is a wasteful number, since it uses less digits than its factorization.

4040312320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143511 (or 143495 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 4040312320 is about 63563.4511334934. The cubic root of 4040312320 is about 1592.7158889017.

Adding to 4040312320 its reverse (232130404), we get a palindrome (4272442724).

It can be divided in two parts, 404031 and 2320, that added together give a triangular number (406351 = T₉₀₁).

The spelling of 4040312320 in words is "four billion, forty million, three hundred twelve thousand, three hundred twenty".