40004096 has 40 divisors (see below), whose sum is σ = 87208704. Its totient is φ = 18181120.

The previous prime is 40004089. The next prime is 40004117. The reversal of 40004096 is 69040004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2081 + ... + 9183.

Almost surely, 2^40004096 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40004096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43604352).

40004096 is an abundant number, since it is smaller than the sum of its proper divisors (47204608).

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

40004096 is an equidigital number, since it uses as much as digits as its factorization.

40004096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7132 (or 7116 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 40004096 is about 6324.8791292799. The cubic root of 40004096 is about 342.0068623727.

The spelling of 40004096 in words is "forty million, four thousand, ninety-six".