40200420422 has 16 divisors (see below), whose sum is σ = 61519910400. Its totient is φ = 19695975240.

The previous prime is 40200420389. The next prime is 40200420431. The reversal of 40200420422 is 22402400204.

It is a junction number, because it is equal to n+sod(n) for n = 40200420394 and 40200420403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511022 + ... + 584417.

It is an arithmetic number, because the mean of its divisors is an integer number (3844994400).

Almost surely, 2^40200420422 is an apocalyptic number.

40200420422 is a deficient number, since it is larger than the sum of its proper divisors (21319489978).

40200420422 is a wasteful number, since it uses less digits than its factorization.

40200420422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095811.

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

Adding to 40200420422 its reverse (22402400204), we get a palindrome (62602820626).

The spelling of 40200420422 in words is "forty billion, two hundred million, four hundred twenty thousand, four hundred twenty-two".