40336644 has 12 divisors (see below), whose sum is σ = 94118864. Its totient is φ = 13445544.

The previous prime is 40336627. The next prime is 40336663. The reversal of 40336644 is 44663304.

40336644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 1680682 + ... + 1680705.

Almost surely, 2^40336644 is an apocalyptic number.

It is an amenable number.

40336644 is an abundant number, since it is smaller than the sum of its proper divisors (53782220).

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

40336644 is a wasteful number, since it uses less digits than its factorization.

40336644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3361394 (or 3361392 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 40336644 is about 6351.1136031408. The cubic root of 40336644 is about 342.9519322238.

Adding to 40336644 its reverse (44663304), we get a palindrome (84999948).

The spelling of 40336644 in words is "forty million, three hundred thirty-six thousand, six hundred forty-four".