40670644 has 24 divisors (see below), whose sum is σ = 84147840. Its totient is φ = 16828896.

The previous prime is 40670599. The next prime is 40670657. The reversal of 40670644 is 44607604.

40670644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24232 + ... + 25855.

It is an arithmetic number, because the mean of its divisors is an integer number (3506160).

Almost surely, 2^40670644 is an apocalyptic number.

It is an amenable number.

40670644 is an abundant number, since it is smaller than the sum of its proper divisors (43477196).

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

40670644 is a wasteful number, since it uses less digits than its factorization.

40670644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50127 (or 50125 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 40670644 is about 6377.3539967607. The cubic root of 40670644 is about 343.8959145165.

It can be divided in two parts, 40670 and 644, that added together give a palindrome (41314).

The spelling of 40670644 in words is "forty million, six hundred seventy thousand, six hundred forty-four".