268424644 has 12 divisors (see below), whose sum is σ = 477444268. Its totient is φ = 132012000.

The previous prime is 268424591. The next prime is 268424657. The reversal of 268424644 is 446424862.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 58522500 + 209902144 = 7650^2 + 14488^2 .

It is a junction number, because it is equal to n+sod(n) for n = 268424597 and 268424606.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549807 + ... + 550294.

Almost surely, 2^268424644 is an apocalyptic number.

It is an amenable number.

268424644 is a deficient number, since it is larger than the sum of its proper divisors (209019624).

268424644 is a wasteful number, since it uses less digits than its factorization.

268424644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100166 (or 1100164 counting only the distinct ones).

The product of its digits is 294912, while the sum is 40.

The square root of 268424644 is about 16383.6700406228. The cubic root of 268424644 is about 645.0709166262.

The spelling of 268424644 in words is "two hundred sixty-eight million, four hundred twenty-four thousand, six hundred forty-four".