263423572 has 12 divisors (see below), whose sum is σ = 473450740. Its totient is φ = 128151936.

The previous prime is 263423557. The next prime is 263423603. The reversal of 263423572 is 275324362.

It can be written as a sum of positive squares in 2 ways, for example, as 175138756 + 88284816 = 13234^2 + 9396^2 .

It is a congruent number.

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, 889797 + ... + 890092.

Almost surely, 2^263423572 is an apocalyptic number.

It is an amenable number.

263423572 is a deficient number, since it is larger than the sum of its proper divisors (210027168).

263423572 is a wasteful number, since it uses less digits than its factorization.

263423572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779930 (or 1779928 counting only the distinct ones).

The product of its digits is 60480, while the sum is 34.

The square root of 263423572 is about 16230.3287705456. The cubic root of 263423572 is about 641.0396286516.

The spelling of 263423572 in words is "two hundred sixty-three million, four hundred twenty-three thousand, five hundred seventy-two".