4040795421 has 12 divisors (see below), whose sum is σ = 6285681948. Its totient is φ = 2486643264.

The previous prime is 4040795389. The next prime is 4040795431. The reversal of 4040795421 is 1245970404.

It is a happy number.

4040795421 is a `hidden beast` number, since 4 + 0 + 40 + 79 + 542 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1594404900 + 2446390521 = 39930^2 + 49461^2 .

It is not a de Polignac number, because 4040795421 - 2⁵ = 4040795389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040795431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17268240 + ... + 17268473.

It is an arithmetic number, because the mean of its divisors is an integer number (523806829).

Almost surely, 2^4040795421 is an apocalyptic number.

It is an amenable number.

4040795421 is a deficient number, since it is larger than the sum of its proper divisors (2244886527).

4040795421 is a wasteful number, since it uses less digits than its factorization.

4040795421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34536732 (or 34536729 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 4040795421 is about 63567.2511675627. The cubic root of 4040795421 is about 1592.7793668305.

The spelling of 4040795421 in words is "four billion, forty million, seven hundred ninety-five thousand, four hundred twenty-one".