40406268 has 96 divisors (see below), whose sum is σ = 113541120. Its totient is φ = 10941120.

The previous prime is 40406167. The next prime is 40406273. The reversal of 40406268 is 86260404.

40406268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153505 + ... + 153767.

It is an arithmetic number, because the mean of its divisors is an integer number (1182720).

Almost surely, 2^40406268 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 40406268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56770560).

40406268 is an abundant number, since it is smaller than the sum of its proper divisors (73134852).

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

40406268 is a wasteful number, since it uses less digits than its factorization.

40406268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 40406268 is about 6356.5924833986. The cubic root of 40406268 is about 343.1491388488.

The spelling of 40406268 in words is "forty million, four hundred six thousand, two hundred sixty-eight".