40240232 has 32 divisors (see below), whose sum is σ = 78355200. Its totient is φ = 19353600.

The previous prime is 40240223. The next prime is 40240237. The reversal of 40240232 is 23204204.

It is a self number, because there is not a number n which added to its sum of digits gives 40240232.

It is not an unprimeable number, because it can be changed into a prime (40240237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51944 + ... + 52712.

It is an arithmetic number, because the mean of its divisors is an integer number (2448600).

Almost surely, 2^40240232 is an apocalyptic number.

It is an amenable number.

40240232 is a deficient number, since it is larger than the sum of its proper divisors (38114968).

40240232 is a wasteful number, since it uses less digits than its factorization.

40240232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 40240232 is about 6343.5188972683. The cubic root of 40240232 is about 342.6784748329.

Adding to 40240232 its reverse (23204204), we get a palindrome (63444436).

The spelling of 40240232 in words is "forty million, two hundred forty thousand, two hundred thirty-two".