40944568 has 64 divisors (see below), whose sum is σ = 95256000. Its totient is φ = 16097280.

The previous prime is 40944529. The next prime is 40944599. The reversal of 40944568 is 86544904.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 40944568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38508 + ... + 39556.

It is an arithmetic number, because the mean of its divisors is an integer number (1488375).

Almost surely, 2^40944568 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 40944568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47628000).

40944568 is an abundant number, since it is smaller than the sum of its proper divisors (54311432).

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

40944568 is a wasteful number, since it uses less digits than its factorization.

40944568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120 (or 1116 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 40944568 is about 6398.7942614214. The cubic root of 40944568 is about 344.6662542952. Note that the first 3 decimals are identical.

The spelling of 40944568 in words is "forty million, nine hundred forty-four thousand, five hundred sixty-eight".