1000266634 has 4 divisors (see below), whose sum is σ = 1500399954. Its totient is φ = 500133316.

The previous prime is 1000266629. The next prime is 1000266649. The reversal of 1000266634 is 4366620001.

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., 885241009 + 115025625 = 29753^2 + 10725^2 .

It is an unprimeable number.

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, 250066657 + ... + 250066660.

Almost surely, 2^1000266634 is an apocalyptic number.

1000266634 is a deficient number, since it is larger than the sum of its proper divisors (500133320).

1000266634 is an equidigital number, since it uses as much as digits as its factorization.

1000266634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500133319.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1000266634 is about 31626.9921744070. The cubic root of 1000266634 is about 1000.0888701019.

Adding to 1000266634 its reverse (4366620001), we get a palindrome (5366886635).

It can be divided in two parts, 10002 and 66634, that added together give a triangular number (76636 = T₃₉₁).

The spelling of 1000266634 in words is "one billion, two hundred sixty-six thousand, six hundred thirty-four".