40644112 has 20 divisors (see below), whose sum is σ = 78852096. Its totient is φ = 20295200.

The previous prime is 40644083. The next prime is 40644119. The reversal of 40644112 is 21144604.

It is not an unprimeable number, because it can be changed into a prime (40644119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17313 + ... + 19519.

Almost surely, 2^40644112 is an apocalyptic number.

It is an amenable number.

40644112 is a deficient number, since it is larger than the sum of its proper divisors (38207984).

40644112 is a wasteful number, since it uses less digits than its factorization.

40644112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366 (or 3360 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 40644112 is about 6375.2734843299. The cubic root of 40644112 is about 343.8211166579.

Adding to 40644112 its reverse (21144604), we get a palindrome (61788716).

The spelling of 40644112 in words is "forty million, six hundred forty-four thousand, one hundred twelve".