40221432412 has 12 divisors (see below), whose sum is σ = 80442864880. Its totient is φ = 17237756736.

The previous prime is 40221432373. The next prime is 40221432431. The reversal of 40221432412 is 21423412204.

40221432412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

40221432412 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718239837 + ... + 718239892.

Almost surely, 2^40221432412 is an apocalyptic number.

It is an amenable number.

40221432412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40221432412 is a wasteful number, since it uses less digits than its factorization.

40221432412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436479740 (or 1436479738 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 40221432412 its reverse (21423412204), we get a palindrome (61644844616).

The spelling of 40221432412 in words is "forty billion, two hundred twenty-one million, four hundred thirty-two thousand, four hundred twelve".