40856144 has 40 divisors (see below), whose sum is σ = 90857280. Its totient is φ = 17434368.

The previous prime is 40856089. The next prime is 40856147. The reversal of 40856144 is 44165804.

40856144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×40856144³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40856144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40856147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31052 + ... + 32340.

It is an arithmetic number, because the mean of its divisors is an integer number (2271432).

Almost surely, 2^40856144 is an apocalyptic number.

It is an amenable number.

40856144 is an abundant number, since it is smaller than the sum of its proper divisors (50001136).

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

40856144 is a wasteful number, since it uses less digits than its factorization.

40856144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587 (or 1581 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 40856144 is about 6391.8811002709. The cubic root of 40856144 is about 344.4179614124.

The spelling of 40856144 in words is "forty million, eight hundred fifty-six thousand, one hundred forty-four".