40418244 has 48 divisors (see below), whose sum is σ = 110308800. Its totient is φ = 12763008.

The previous prime is 40418243. The next prime is 40418249. The reversal of 40418244 is 44281404.

It is a happy number.

40418244 is a `hidden beast` number, since 4 + 0 + 418 + 244 = 666.

40418244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (40418243) 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 15 ways as a sum of consecutive naturals, for example, 7797 + ... + 11900.

It is an arithmetic number, because the mean of its divisors is an integer number (2298100).

Almost surely, 2^40418244 is an apocalyptic number.

It is an amenable number.

40418244 is an abundant number, since it is smaller than the sum of its proper divisors (69890556).

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

40418244 is a wasteful number, since it uses less digits than its factorization.

40418244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19729 (or 19721 counting only the distinct ones).

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

The square root of 40418244 is about 6357.5344277479. The cubic root of 40418244 is about 343.1830374520.

Adding to 40418244 its reverse (44281404), we get a palindrome (84699648).

The spelling of 40418244 in words is "forty million, four hundred eighteen thousand, two hundred forty-four".