40457868 has 48 divisors (see below), whose sum is σ = 104944896. Its totient is φ = 12026560.

The previous prime is 40457867. The next prime is 40457891. The reversal of 40457868 is 86875404.

It is not an unprimeable number, because it can be changed into a prime (40457863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4105 + ... + 9887.

It is an arithmetic number, because the mean of its divisors is an integer number (2186352).

Almost surely, 2^40457868 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 40457868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52472448).

40457868 is an abundant number, since it is smaller than the sum of its proper divisors (64487028).

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

40457868 is a wasteful number, since it uses less digits than its factorization.

40457868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5854 (or 5852 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 40457868 is about 6360.6499667880. The cubic root of 40457868 is about 343.2951472491.

The spelling of 40457868 in words is "forty million, four hundred fifty-seven thousand, eight hundred sixty-eight".