40043344 has 20 divisors (see below), whose sum is σ = 84637440. Its totient is φ = 18201440.

The previous prime is 40043329. The next prime is 40043357. The reversal of 40043344 is 44334004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 113584 + ... + 113935.

It is an arithmetic number, because the mean of its divisors is an integer number (4231872).

Almost surely, 2^40043344 is an apocalyptic number.

40043344 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40043344 is an abundant number, since it is smaller than the sum of its proper divisors (44594096).

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

40043344 is a wasteful number, since it uses less digits than its factorization.

40043344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227538 (or 227532 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 40043344 is about 6327.9810366340. The cubic root of 40043344 is about 342.1186734060.

Adding to 40043344 its reverse (44334004), we get a palindrome (84377348).

The spelling of 40043344 in words is "forty million, forty-three thousand, three hundred forty-four".