4040021264 has 30 divisors (see below), whose sum is σ = 8023166730. Its totient is φ = 1970728960.

The previous prime is 4040021263. The next prime is 4040021299. The reversal of 4040021264 is 4621200404.

It can be written as a sum of positive squares in 3 ways, for example, as 166203664 + 3873817600 = 12892^2 + 62240^2 .

It is not an unprimeable number, because it can be changed into a prime (4040021263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48209 + ... + 102000.

It is an arithmetic number, because the mean of its divisors is an integer number (267438891).

Almost surely, 2^4040021264 is an apocalyptic number.

It is an amenable number.

4040021264 is a deficient number, since it is larger than the sum of its proper divisors (3983145466).

4040021264 is a wasteful number, since it uses less digits than its factorization.

4040021264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150299 (or 150252 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 4040021264 is about 63561.1616004616. The cubic root of 4040021264 is about 1592.6776426300.

Adding to 4040021264 its reverse (4621200404), we get a palindrome (8661221668).

The spelling of 4040021264 in words is "four billion, forty million, twenty-one thousand, two hundred sixty-four".