40404200042 has 8 divisors (see below), whose sum is σ = 60681032832. Its totient is φ = 20177189100.

The previous prime is 40404200009. The next prime is 40404200051. The reversal of 40404200042 is 24000240404.

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 = 40404199987 and 40404200023.

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, 12453434 + ... + 12456677.

It is an arithmetic number, because the mean of its divisors is an integer number (7585129104).

Almost surely, 2^40404200042 is an apocalyptic number.

40404200042 is a deficient number, since it is larger than the sum of its proper divisors (20276832790).

40404200042 is a wasteful number, since it uses less digits than its factorization.

40404200042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24910924.

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 40404200042 its reverse (24000240404), we get a palindrome (64404440446).

The spelling of 40404200042 in words is "forty billion, four hundred four million, two hundred thousand, forty-two".