40812444 has 48 divisors (see below), whose sum is σ = 112039200. Its totient is φ = 12803328.

The previous prime is 40812407. The next prime is 40812451. The reversal of 40812444 is 44421804.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 15 ways as a sum of consecutive naturals, for example, 9279 + ... + 12950.

It is an arithmetic number, because the mean of its divisors is an integer number (2334150).

Almost surely, 2^40812444 is an apocalyptic number.

It is an amenable number.

40812444 is an abundant number, since it is smaller than the sum of its proper divisors (71226756).

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

40812444 is a wasteful number, since it uses less digits than its factorization.

40812444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22259 (or 22251 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

The square root of 40812444 is about 6388.4617866901. The cubic root of 40812444 is about 344.2951203668.

The spelling of 40812444 in words is "forty million, eight hundred twelve thousand, four hundred forty-four".