40856508 has 192 divisors, whose sum is σ = 140313600. Its totient is φ = 9987840.

The previous prime is 40856467. The next prime is 40856513. The reversal of 40856508 is 80565804.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2403316 + ... + 2403332.

It is an arithmetic number, because the mean of its divisors is an integer number (730800).

Almost surely, 2^40856508 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 40856508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70156800).

40856508 is an abundant number, since it is smaller than the sum of its proper divisors (99457092).

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

40856508 is a wasteful number, since it uses less digits than its factorization.

40856508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 40856508 is about 6391.9095738285. The cubic root of 40856508 is about 344.4189842514.

The spelling of 40856508 in words is "forty million, eight hundred fifty-six thousand, five hundred eight".