40644088 has 16 divisors (see below), whose sum is σ = 76275360. Its totient is φ = 20304000.

The previous prime is 40644083. The next prime is 40644119. The reversal of 40644088 is 88044604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40644083) 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, 16113 + ... + 18463.

It is an arithmetic number, because the mean of its divisors is an integer number (4767210).

Almost surely, 2^40644088 is an apocalyptic number.

It is an amenable number.

40644088 is a deficient number, since it is larger than the sum of its proper divisors (35631272).

40644088 is a wasteful number, since it uses less digits than its factorization.

40644088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4518 (or 4514 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 40644088 is about 6375.2716020574. The cubic root of 40644088 is about 343.8210489834.

The spelling of 40644088 in words is "forty million, six hundred forty-four thousand, eighty-eight".