4040400320 has 56 divisors (see below), whose sum is σ = 10495867248. Its totient is φ = 1469235200.

The previous prime is 4040400257. The next prime is 4040400349. The reversal of 4040400320 is 230040404.

4040400320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×4040400320² = 32649669491712204800, which contains 22 as substring.

It is a congruent number.

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, 570401 + ... + 577440.

Almost surely, 2^4040400320 is an apocalyptic number.

4040400320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4040400320 is an abundant number, since it is smaller than the sum of its proper divisors (6455466928).

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

4040400320 is a wasteful number, since it uses less digits than its factorization.

4040400320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147869 (or 1147859 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 4040400320 is about 63564.1433514210. The cubic root of 4040400320 is about 1592.7274521976.

Adding to 4040400320 its reverse (230040404), we get a palindrome (4270440724).

The spelling of 4040400320 in words is "four billion, forty million, four hundred thousand, three hundred twenty".