422000402 has 8 divisors (see below), whose sum is σ = 654828300. Its totient is φ = 203724304.

The previous prime is 422000339. The next prime is 422000407. The reversal of 422000402 is 204000224.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 372142681 + 49857721 = 19291^2 + 7061^2 .

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 (422000407) 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, 3637877 + ... + 3637992.

Almost surely, 2^422000402 is an apocalyptic number.

422000402 is a deficient number, since it is larger than the sum of its proper divisors (232827898).

422000402 is a wasteful number, since it uses less digits than its factorization.

422000402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7275900.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 422000402 is about 20542.6483686987. The cubic root of 422000402 is about 750.0743049344.

Adding to 422000402 its reverse (204000224), we get a palindrome (626000626).

The spelling of 422000402 in words is "four hundred twenty-two million, four hundred two", and thus it is an aban number.