40344300 has 108 divisors (see below), whose sum is σ = 132022800. Its totient is φ = 10285440.

The previous prime is 40344263. The next prime is 40344301. The reversal of 40344300 is 344304.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (40344301) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19726 + ... + 21674.

Almost surely, 2^40344300 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40344300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66011400).

40344300 is an abundant number, since it is smaller than the sum of its proper divisors (91678500).

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

40344300 is a wasteful number, since it uses less digits than its factorization.

40344300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992 (or 1982 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 40344300 is about 6351.7163034884. The cubic root of 40344300 is about 342.9736285743.

Adding to 40344300 its reverse (344304), we get a palindrome (40688604).

The spelling of 40344300 in words is "forty million, three hundred forty-four thousand, three hundred".