40844136 has 64 divisors (see below), whose sum is σ = 108385920. Its totient is φ = 12798720.

The previous prime is 40844131. The next prime is 40844137. The reversal of 40844136 is 63144804.

It is not an unprimeable number, because it can be changed into a prime (40844131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33066 + ... + 34278.

It is an arithmetic number, because the mean of its divisors is an integer number (1693530).

Almost surely, 2^40844136 is an apocalyptic number.

40844136 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40844136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54192960).

40844136 is an abundant number, since it is smaller than the sum of its proper divisors (67541784).

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

40844136 is a wasteful number, since it uses less digits than its factorization.

40844136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306 (or 1302 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 40844136 is about 6390.9417146458. The cubic root of 40844136 is about 344.3842155608.

It can be divided in two parts, 408 and 44136, that added together give a palindrome (44544).

The spelling of 40844136 in words is "forty million, eight hundred forty-four thousand, one hundred thirty-six".