40856424 has 64 divisors (see below), whose sum is σ = 117552000. Its totient is φ = 11591424.

The previous prime is 40856371. The next prime is 40856449. The reversal of 40856424 is 42465804.

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, 25602 + ... + 27150.

It is an arithmetic number, because the mean of its divisors is an integer number (1836750).

Almost surely, 2^40856424 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 40856424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58776000).

40856424 is an abundant number, since it is smaller than the sum of its proper divisors (76695576).

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

40856424 is a wasteful number, since it uses less digits than its factorization.

40856424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722 (or 1718 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 40856424 is about 6391.9030030187. The cubic root of 40856424 is about 344.4187482122.

The spelling of 40856424 in words is "forty million, eight hundred fifty-six thousand, four hundred twenty-four".