40345232 has 20 divisors (see below), whose sum is σ = 78671676. Its totient is φ = 20042880.

The previous prime is 40345231. The next prime is 40345273. The reversal of 40345232 is 23254304.

40345232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4393216 + 35952016 = 2096^2 + 5996^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40345198 and 40345207.

It is not an unprimeable number, because it can be changed into a prime (40345231) 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, 5519 + ... + 10542.

Almost surely, 2^40345232 is an apocalyptic number.

It is an amenable number.

40345232 is a deficient number, since it is larger than the sum of its proper divisors (38326444).

40345232 is a wasteful number, since it uses less digits than its factorization.

40345232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16226 (or 16220 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 40345232 is about 6351.7896690618. The cubic root of 40345232 is about 342.9762695831.

Adding to 40345232 its reverse (23254304), we get a palindrome (63599536).

The spelling of 40345232 in words is "forty million, three hundred forty-five thousand, two hundred thirty-two".