40068756 has 168 divisors, whose sum is σ = 130250624. Its totient is φ = 10497600.

The previous prime is 40068713. The next prime is 40068773. The reversal of 40068756 is 65786004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 40068756.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 265281 + ... + 265431.

Almost surely, 2^40068756 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 40068756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65125312).

40068756 is an abundant number, since it is smaller than the sum of its proper divisors (90181868).

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

40068756 is a wasteful number, since it uses less digits than its factorization.

40068756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 176 counting only the distinct ones).

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

The square root of 40068756 is about 6329.9886255822. The cubic root of 40068756 is about 342.1910290122.

The spelling of 40068756 in words is "forty million, sixty-eight thousand, seven hundred fifty-six".