422021402 has 16 divisors (see below), whose sum is σ = 692812224. Its totient is φ = 191208000.

The previous prime is 422021377. The next prime is 422021417. The reversal of 422021402 is 204120224.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23999 + ... + 37682.

It is an arithmetic number, because the mean of its divisors is an integer number (43300764).

Almost surely, 2^422021402 is an apocalyptic number.

422021402 is a deficient number, since it is larger than the sum of its proper divisors (270790822).

422021402 is a wasteful number, since it uses less digits than its factorization.

422021402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62005.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 422021402 is about 20543.1594940992. The cubic root of 422021402 is about 750.0867467070.

Adding to 422021402 its reverse (204120224), we get a palindrome (626141626).

The spelling of 422021402 in words is "four hundred twenty-two million, twenty-one thousand, four hundred two".