40331632 has 20 divisors (see below), whose sum is σ = 85246776. Its totient is φ = 18332480.

The previous prime is 40331587. The next prime is 40331639. The reversal of 40331632 is 23613304.

40331632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40331639) 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, 114403 + ... + 114754.

Almost surely, 2^40331632 is an apocalyptic number.

It is an amenable number.

40331632 is an abundant number, since it is smaller than the sum of its proper divisors (44915144).

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

40331632 is a wasteful number, since it uses less digits than its factorization.

40331632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229176 (or 229170 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 40331632 is about 6350.7190144109. The cubic root of 40331632 is about 342.9377272222.

Adding to 40331632 its reverse (23613304), we get a palindrome (63944936).

It can be divided in two parts, 4033 and 1632, that multiplied together give a palindrome (6581856).

The spelling of 40331632 in words is "forty million, three hundred thirty-one thousand, six hundred thirty-two".