40865888 has 48 divisors (see below), whose sum is σ = 92451744. Its totient is φ = 17418240.

The previous prime is 40865857. The next prime is 40865897. The reversal of 40865888 is 88856804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53606 + ... + 54362.

It is an arithmetic number, because the mean of its divisors is an integer number (1926078).

Almost surely, 2^40865888 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 40865888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46225872).

40865888 is an abundant number, since it is smaller than the sum of its proper divisors (51585856).

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

40865888 is a wasteful number, since it uses less digits than its factorization.

40865888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015 (or 1007 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 47.

The square root of 40865888 is about 6392.6432717617. The cubic root of 40865888 is about 344.4453399291.

The spelling of 40865888 in words is "forty million, eight hundred sixty-five thousand, eight hundred eighty-eight".