745312266 has 80 divisors (see below), whose sum is σ = 1776490056. Its totient is φ = 232740864.

The previous prime is 745312247. The next prime is 745312273. The reversal of 745312266 is 662213547.

It can be written as a sum of positive squares in 4 ways, for example, as 726572025 + 18740241 = 26955^2 + 4329^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 745312266.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 762370 + ... + 763346.

Almost surely, 2^745312266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 745312266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (888245028).

745312266 is an abundant number, since it is smaller than the sum of its proper divisors (1031177790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

745312266 is a wasteful number, since it uses less digits than its factorization.

745312266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285 (or 1276 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 745312266 is about 27300.4077991520. The cubic root of 745312266 is about 906.6634104254.

The spelling of 745312266 in words is "seven hundred forty-five million, three hundred twelve thousand, two hundred sixty-six".