40431204431442 has 48 divisors (see below), whose sum is σ = 101186115911712. Its totient is φ = 11531181298560.

The previous prime is 40431204431441. The next prime is 40431204431447. The reversal of 40431204431442 is 24413440213404.

40431204431442 is a `hidden beast` number, since 4 + 0 + 4 + 3 + 1 + 204 + 4 + 3 + 1 + 442 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 40431204431397 and 40431204431406.

It is not an unprimeable number, because it can be changed into a prime (40431204431441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6005820228 + ... + 6005826959.

It is an arithmetic number, because the mean of its divisors is an integer number (2108044081494).

Almost surely, 2^{40431204431442} is an apocalyptic number.

40431204431442 is an abundant number, since it is smaller than the sum of its proper divisors (60754911480270).

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

40431204431442 is a wasteful number, since it uses less digits than its factorization.

40431204431442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12011647223 (or 12011647220 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 40431204431442 its reverse (24413440213404), we get a palindrome (64844644644846).

The spelling of 40431204431442 in words is "forty trillion, four hundred thirty-one billion, two hundred four million, four hundred thirty-one thousand, four hundred forty-two".