40213744 has 20 divisors (see below), whose sum is σ = 78142320. Its totient is φ = 20048000.

The previous prime is 40213681. The next prime is 40213753. The reversal of 40213744 is 44731204.

40213744 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 3 ways as a sum of consecutive naturals, for example, 2244 + ... + 9244.

It is an arithmetic number, because the mean of its divisors is an integer number (3907116).

Almost surely, 2^40213744 is an apocalyptic number.

It is an amenable number.

40213744 is a deficient number, since it is larger than the sum of its proper divisors (37928576).

40213744 is a wasteful number, since it uses less digits than its factorization.

40213744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7368 (or 7362 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 40213744 is about 6341.4307533868. The cubic root of 40213744 is about 342.6032693372.

Adding to 40213744 its reverse (44731204), we get a palindrome (84944948).

The spelling of 40213744 in words is "forty million, two hundred thirteen thousand, seven hundred forty-four".