4040408008 has 32 divisors (see below), whose sum is σ = 9324020160. Its totient is φ = 1598402880.

The previous prime is 4040407997. The next prime is 4040408023. The reversal of 4040408008 is 8008040404.

It is a happy number.

It is a super-2 number, since 2×4040408008² = 32649793742221056128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 2774278 + ... + 2775733.

It is an arithmetic number, because the mean of its divisors is an integer number (291375630).

Almost surely, 2^4040408008 is an apocalyptic number.

It is an amenable number.

4040408008 is an abundant number, since it is smaller than the sum of its proper divisors (5283612152).

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

4040408008 is a wasteful number, since it uses less digits than its factorization.

4040408008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550037 (or 5550033 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 4040408008 is about 63564.2038257383. The cubic root of 4040408008 is about 1592.7284624012.

The spelling of 4040408008 in words is "four billion, forty million, four hundred eight thousand, eight".