40204424420042 has 8 divisors (see below), whose sum is σ = 61777530206532. Its totient is φ = 19611914351200.

The previous prime is 40204424420023. The next prime is 40204424420057. The reversal of 40204424420042 is 24002442440204.

It can be written as a sum of positive squares in 2 ways, for example, as 40028512122481 + 175912297561 = 6326809^2 + 419419^2 .

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 = 40204424419990 and 40204424420008.

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, 245148929309 + ... + 245148929472.

Almost surely, 2^{40204424420042} is an apocalyptic number.

40204424420042 is a deficient number, since it is larger than the sum of its proper divisors (21573105786490).

40204424420042 is a wasteful number, since it uses less digits than its factorization.

40204424420042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490297858824.

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 40204424420042 its reverse (24002442440204), we get a palindrome (64206866860246).

The spelling of 40204424420042 in words is "forty trillion, two hundred four billion, four hundred twenty-four million, four hundred twenty thousand, forty-two".