264243128 has 16 divisors (see below), whose sum is σ = 512541000. Its totient is φ = 127565536.

The previous prime is 264243103. The next prime is 264243139. The reversal of 264243128 is 821342462.

It is a junction number, because it is equal to n+sod(n) for n = 264243094 and 264243103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569258 + ... + 569721.

Almost surely, 2^264243128 is an apocalyptic number.

It is an amenable number.

264243128 is a deficient number, since it is larger than the sum of its proper divisors (248297872).

264243128 is a wasteful number, since it uses less digits than its factorization.

264243128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139014 (or 1139010 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 264243128 is about 16255.5568345105. The cubic root of 264243128 is about 641.7037352248.

The spelling of 264243128 in words is "two hundred sixty-four million, two hundred forty-three thousand, one hundred twenty-eight".