426633166 has 4 divisors (see below), whose sum is σ = 639949752. Its totient is φ = 213316582.

The previous prime is 426633161. The next prime is 426633169. The reversal of 426633166 is 661336624.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426633161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106658290 + ... + 106658293.

It is an arithmetic number, because the mean of its divisors is an integer number (159987438).

Almost surely, 2^426633166 is an apocalyptic number.

426633166 is a deficient number, since it is larger than the sum of its proper divisors (213316586).

426633166 is a wasteful number, since it uses less digits than its factorization.

426633166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213316585.

The product of its digits is 93312, while the sum is 37.

The square root of 426633166 is about 20655.1002418289. The cubic root of 426633166 is about 752.8091192552.

The spelling of 426633166 in words is "four hundred twenty-six million, six hundred thirty-three thousand, one hundred sixty-six".