40213232 has 10 divisors (see below), whose sum is σ = 77913168. Its totient is φ = 20106608.

The previous prime is 40213219. The next prime is 40213249. The reversal of 40213232 is 23231204.

40213232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40213232.

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 as a sum of consecutive naturals, namely, 1256648 + ... + 1256679.

Almost surely, 2^40213232 is an apocalyptic number.

It is an amenable number.

40213232 is a deficient number, since it is larger than the sum of its proper divisors (37699936).

40213232 is a wasteful number, since it uses less digits than its factorization.

40213232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513335 (or 2513329 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 40213232 is about 6341.3903838196. The cubic root of 40213232 is about 342.6018153267.

Adding to 40213232 its reverse (23231204), we get a palindrome (63444436).

The spelling of 40213232 in words is "forty million, two hundred thirteen thousand, two hundred thirty-two".