40861944 has 24 divisors (see below), whose sum is σ = 110667960. Its totient is φ = 13620624.

The previous prime is 40861943. The next prime is 40861987. The reversal of 40861944 is 44916804.

It is a happy number.

40861944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 40861899 and 40861908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40861943) 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 5 ways as a sum of consecutive naturals, for example, 283692 + ... + 283835.

It is an arithmetic number, because the mean of its divisors is an integer number (4611165).

Almost surely, 2^40861944 is an apocalyptic number.

It is an amenable number.

40861944 is an abundant number, since it is smaller than the sum of its proper divisors (69806016).

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

40861944 is a wasteful number, since it uses less digits than its factorization.

40861944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567539 (or 567532 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 40861944 is about 6392.3347847246. The cubic root of 40861944 is about 344.4342586729.

The spelling of 40861944 in words is "forty million, eight hundred sixty-one thousand, nine hundred forty-four".