426645122 has 4 divisors (see below), whose sum is σ = 639967686. Its totient is φ = 213322560.

The previous prime is 426645077. The next prime is 426645127. The reversal of 426645122 is 221546624.

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., 408403681 + 18241441 = 20209^2 + 4271^2 .

It is not an unprimeable number, because it can be changed into a prime (426645127) 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 as a sum of consecutive naturals, namely, 106661279 + ... + 106661282.

Almost surely, 2^426645122 is an apocalyptic number.

426645122 is a deficient number, since it is larger than the sum of its proper divisors (213322564).

426645122 is a wasteful number, since it uses less digits than its factorization.

426645122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213322563.

The product of its digits is 23040, while the sum is 32.

The square root of 426645122 is about 20655.3896598442. The cubic root of 426645122 is about 752.8161514493.

The spelling of 426645122 in words is "four hundred twenty-six million, six hundred forty-five thousand, one hundred twenty-two".