264743489 has 4 divisors (see below), whose sum is σ = 264857520. Its totient is φ = 264629460.

The previous prime is 264743467. The next prime is 264743497. The reversal of 264743489 is 984347462.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 264743489 - 2¹² = 264739393 is a prime.

It is a super-2 number, since 2×264743489² = 140178229935786242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264743419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53459 + ... + 58200.

It is an arithmetic number, because the mean of its divisors is an integer number (66214380).

Almost surely, 2^264743489 is an apocalyptic number.

It is an amenable number.

264743489 is a deficient number, since it is larger than the sum of its proper divisors (114031).

264743489 is a wasteful number, since it uses less digits than its factorization.

264743489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114030.

The product of its digits is 1161216, while the sum is 47.

The square root of 264743489 is about 16270.9400158688. The cubic root of 264743489 is about 642.1085153151.

The spelling of 264743489 in words is "two hundred sixty-four million, seven hundred forty-three thousand, four hundred eighty-nine".