667282426 has 8 divisors (see below), whose sum is σ = 1001034900. Its totient is φ = 333604128.

The previous prime is 667282403. The next prime is 667282433. The reversal of 667282426 is 624282766.

It can be written as a sum of positive squares in 2 ways, for example, as 585398025 + 81884401 = 24195^2 + 9049^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19830 + ... + 41566.

Almost surely, 2^667282426 is an apocalyptic number.

667282426 is a deficient number, since it is larger than the sum of its proper divisors (333752474).

667282426 is a wasteful number, since it uses less digits than its factorization.

667282426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37088.

The product of its digits is 387072, while the sum is 43.

The square root of 667282426 is about 25831.8103508058. The cubic root of 667282426 is about 873.8493396345.

It can be divided in two parts, 6672 and 82426, that added together give a palindrome (89098).

The spelling of 667282426 in words is "six hundred sixty-seven million, two hundred eighty-two thousand, four hundred twenty-six".