40844100 has 72 divisors (see below), whose sum is σ = 128929248. Its totient is φ = 9900800.

The previous prime is 40844059. The next prime is 40844101. The reversal of 40844100 is 144804.

It is not an unprimeable number, because it can be changed into a prime (40844101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2889 + ... + 9488.

It is an arithmetic number, because the mean of its divisors is an integer number (1790684).

Almost surely, 2^40844100 is an apocalyptic number.

It is an amenable number.

40844100 is an abundant number, since it is smaller than the sum of its proper divisors (88085148).

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

40844100 is a wasteful number, since it uses less digits than its factorization.

40844100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12405 (or 12398 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 40844100 is about 6390.9388981589. The cubic root of 40844100 is about 344.3841143807.

Adding to 40844100 its reverse (144804), we get a palindrome (40988904).

The spelling of 40844100 in words is "forty million, eight hundred forty-four thousand, one hundred".