40231132 has 12 divisors (see below), whose sum is σ = 74110120. Its totient is φ = 19056816.

The previous prime is 40231111. The next prime is 40231133. The reversal of 40231132 is 23113204.

It is a happy number.

40231132 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 not an unprimeable number, because it can be changed into a prime (40231133) by changing a digit.

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, 264603 + ... + 264754.

Almost surely, 2^40231132 is an apocalyptic number.

It is an amenable number.

40231132 is a deficient number, since it is larger than the sum of its proper divisors (33878988).

40231132 is a wasteful number, since it uses less digits than its factorization.

40231132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529380 (or 529378 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 40231132 is about 6342.8015892033. The cubic root of 40231132 is about 342.6526415721.

Adding to 40231132 its reverse (23113204), we get a palindrome (63344336).

The spelling of 40231132 in words is "forty million, two hundred thirty-one thousand, one hundred thirty-two".