40212224232 has 32 divisors (see below), whose sum is σ = 101506591680. Its totient is φ = 13273937280.

The previous prime is 40212224231. The next prime is 40212224291. The reversal of 40212224232 is 23242221204.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (40212224231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8131069 + ... + 8136012.

It is an arithmetic number, because the mean of its divisors is an integer number (3172080990).

Almost surely, 2^40212224232 is an apocalyptic number.

It is an amenable number.

40212224232 is an abundant number, since it is smaller than the sum of its proper divisors (61294367448).

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

40212224232 is a wasteful number, since it uses less digits than its factorization.

40212224232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16267193 (or 16267189 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 40212224232 its reverse (23242221204), we get a palindrome (63454445436).

The spelling of 40212224232 in words is "forty billion, two hundred twelve million, two hundred twenty-four thousand, two hundred thirty-two".