40244886 has 48 divisors (see below), whose sum is σ = 95546880. Its totient is φ = 12141360.

The previous prime is 40244879. The next prime is 40244887. The reversal of 40244886 is 68844204.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 40244886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40244887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86691 + ... + 87153.

It is an arithmetic number, because the mean of its divisors is an integer number (1990560).

Almost surely, 2^40244886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40244886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47773440).

40244886 is an abundant number, since it is smaller than the sum of its proper divisors (55301994).

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

40244886 is a wasteful number, since it uses less digits than its factorization.

40244886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 918 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 40244886 is about 6343.8857177601. The cubic root of 40244886 is about 342.6916851952.

The spelling of 40244886 in words is "forty million, two hundred forty-four thousand, eight hundred eighty-six".