422671972 has 6 divisors (see below), whose sum is σ = 739675958. Its totient is φ = 211335984.

The previous prime is 422671919. The next prime is 422671973. The reversal of 422671972 is 279176224.

It can be written as a sum of positive squares in only one way, i.e., 418775296 + 3896676 = 20464^2 + 1974^2 .

It is not an unprimeable number, because it can be changed into a prime (422671973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52833993 + ... + 52834000.

Almost surely, 2^422671972 is an apocalyptic number.

It is an amenable number.

422671972 is a deficient number, since it is larger than the sum of its proper divisors (317003986).

422671972 is a wasteful number, since it uses less digits than its factorization.

422671972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105667997 (or 105667995 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 422671972 is about 20558.9876209895. The cubic root of 422671972 is about 750.4719826179.

The spelling of 422671972 in words is "four hundred twenty-two million, six hundred seventy-one thousand, nine hundred seventy-two".