264643430 has 8 divisors (see below), whose sum is σ = 476358192. Its totient is φ = 105857368.

The previous prime is 264643427. The next prime is 264643433. The reversal of 264643430 is 34346462.

It is an interprime number because it is at equal distance from previous prime (264643427) and next prime (264643433).

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

It is a super-2 number, since 2×264643430² = 140072290084329800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264643433) 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, 13232162 + ... + 13232181.

It is an arithmetic number, because the mean of its divisors is an integer number (59544774).

Almost surely, 2^264643430 is an apocalyptic number.

264643430 is a deficient number, since it is larger than the sum of its proper divisors (211714762).

264643430 is a wasteful number, since it uses less digits than its factorization.

264643430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26464350.

The product of its (nonzero) digits is 41472, while the sum is 32.

The square root of 264643430 is about 16267.8649490337. The cubic root of 264643430 is about 642.0276107987.

Adding to 264643430 its reverse (34346462), we get a palindrome (298989892).

The spelling of 264643430 in words is "two hundred sixty-four million, six hundred forty-three thousand, four hundred thirty".