422981961 has 8 divisors (see below), whose sum is σ = 566336640. Its totient is φ = 280807632.

The previous prime is 422981957. The next prime is 422981969. The reversal of 422981961 is 169189224.

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

It is not a de Polignac number, because 422981961 - 2² = 422981957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422981969) by changing a digit.

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, 294250 + ... + 295683.

It is an arithmetic number, because the mean of its divisors is an integer number (70792080).

Almost surely, 2^422981961 is an apocalyptic number.

It is an amenable number.

422981961 is a deficient number, since it is larger than the sum of its proper divisors (143354679).

422981961 is a wasteful number, since it uses less digits than its factorization.

422981961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590175.

The product of its digits is 62208, while the sum is 42.

The square root of 422981961 is about 20566.5252534306. The cubic root of 422981961 is about 750.6554039829.

The spelling of 422981961 in words is "four hundred twenty-two million, nine hundred eighty-one thousand, nine hundred sixty-one".