263661452 has 12 divisors (see below), whose sum is σ = 466967256. Its totient is φ = 130242240.

The previous prime is 263661427. The next prime is 263661469. The reversal of 263661452 is 254166362.

It is a happy number.

It is a super-2 number, since 2×263661452² = 139034722541496608, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396749 + ... + 397412.

It is an arithmetic number, because the mean of its divisors is an integer number (38913938).

Almost surely, 2^263661452 is an apocalyptic number.

It is an amenable number.

263661452 is a deficient number, since it is larger than the sum of its proper divisors (203305804).

263661452 is a wasteful number, since it uses less digits than its factorization.

263661452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794248 (or 794246 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 263661452 is about 16237.6553726208. The cubic root of 263661452 is about 641.2325304326.

The spelling of 263661452 in words is "two hundred sixty-three million, six hundred sixty-one thousand, four hundred fifty-two".