4040401040 has 40 divisors (see below), whose sum is σ = 10116545208. Its totient is φ = 1491840000.

The previous prime is 4040401037. The next prime is 4040401051. The reversal of 4040401040 is 401040404.

It can be written as a sum of positive squares in 4 ways, for example, as 196897024 + 3843504016 = 14032^2 + 61996^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1941461 + ... + 1943540.

Almost surely, 2^4040401040 is an apocalyptic number.

4040401040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4040401040 is an abundant number, since it is smaller than the sum of its proper divisors (6076144168).

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

4040401040 is a wasteful number, since it uses less digits than its factorization.

4040401040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885027 (or 3885021 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 4040401040 is about 63564.1490149911. The cubic root of 4040401040 is about 1592.7275468057.

Adding to 4040401040 its reverse (401040404), we get a palindrome (4441441444).

The spelling of 4040401040 in words is "four billion, forty million, four hundred one thousand, forty".