40430431042 has 8 divisors (see below), whose sum is σ = 60686271036. Its totient is φ = 20201674032.

The previous prime is 40430431003. The next prime is 40430431073. The reversal of 40430431042 is 24013403404.

It can be written as a sum of positive squares in 2 ways, for example, as 39649172641 + 781258401 = 199121^2 + 27951^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40430430998 and 40430431016.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6767013 + ... + 6772984.

Almost surely, 2^40430431042 is an apocalyptic number.

40430431042 is a deficient number, since it is larger than the sum of its proper divisors (20255839994).

40430431042 is a wasteful number, since it uses less digits than its factorization.

40430431042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13541492.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 40430431042 its reverse (24013403404), we get a palindrome (64443834446).

The spelling of 40430431042 in words is "forty billion, four hundred thirty million, four hundred thirty-one thousand, forty-two".