40422220402 has 8 divisors (see below), whose sum is σ = 60640846956. Its totient is φ = 20208604752.

The previous prime is 40422220393. The next prime is 40422220403. The reversal of 40422220402 is 20402222404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 37500709801 + 2921510601 = 193651^2 + 54051^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40422220403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1232493 + ... + 1264864.

Almost surely, 2^40422220402 is an apocalyptic number.

40422220402 is a deficient number, since it is larger than the sum of its proper divisors (20218626554).

40422220402 is a wasteful number, since it uses less digits than its factorization.

40422220402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505452.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 40422220402 its reverse (20402222404), we get a palindrome (60824442806).

The spelling of 40422220402 in words is "forty billion, four hundred twenty-two million, two hundred twenty thousand, four hundred two".