40010844 has 12 divisors (see below), whose sum is σ = 93358664. Its totient is φ = 13336944.

The previous prime is 40010833. The next prime is 40010857. The reversal of 40010844 is 44801004.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 40010844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1667107 + ... + 1667130.

Almost surely, 2^40010844 is an apocalyptic number.

It is an amenable number.

40010844 is an abundant number, since it is smaller than the sum of its proper divisors (53347820).

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

40010844 is a wasteful number, since it uses less digits than its factorization.

40010844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3334244 (or 3334242 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 40010844 is about 6325.4125557152. The cubic root of 40010844 is about 342.0260915083.

Adding to 40010844 its reverse (44801004), we get a palindrome (84811848).

The spelling of 40010844 in words is "forty million, ten thousand, eight hundred forty-four".