422608646242 has 4 divisors (see below), whose sum is σ = 633912969366. Its totient is φ = 211304323120.

The previous prime is 422608646233. The next prime is 422608646293. The reversal of 422608646242 is 242646806224.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 332734002561 + 89874643681 = 576831^2 + 299791^2 .

It is a junction number, because it is equal to n+sod(n) for n = 422608646192 and 422608646201.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105652161559 + ... + 105652161562.

Almost surely, 2^422608646242 is an apocalyptic number.

422608646242 is a deficient number, since it is larger than the sum of its proper divisors (211304323124).

422608646242 is a wasteful number, since it uses less digits than its factorization.

422608646242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211304323123.

The product of its (nonzero) digits is 1769472, while the sum is 46.

The spelling of 422608646242 in words is "four hundred twenty-two billion, six hundred eight million, six hundred forty-six thousand, two hundred forty-two".