40440432412 has 6 divisors (see below), whose sum is σ = 70770756728. Its totient is φ = 20220216204.

The previous prime is 40440432407. The next prime is 40440432419. The reversal of 40440432412 is 21423404404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40440432419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055054048 + ... + 5055054055.

Almost surely, 2^40440432412 is an apocalyptic number.

It is an amenable number.

40440432412 is a deficient number, since it is larger than the sum of its proper divisors (30330324316).

40440432412 is a wasteful number, since it uses less digits than its factorization.

40440432412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10110108107 (or 10110108105 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 40440432412 its reverse (21423404404), we get a palindrome (61863836816).

The spelling of 40440432412 in words is "forty billion, four hundred forty million, four hundred thirty-two thousand, four hundred twelve".