263213364 has 12 divisors (see below), whose sum is σ = 614164544. Its totient is φ = 87737784.

The previous prime is 263213351. The next prime is 263213369. The reversal of 263213364 is 463312362.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263213369) by changing a digit.

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, 10967212 + ... + 10967235.

Almost surely, 2^263213364 is an apocalyptic number.

It is an amenable number.

263213364 is an abundant number, since it is smaller than the sum of its proper divisors (350951180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263213364 is a wasteful number, since it uses less digits than its factorization.

263213364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21934454 (or 21934452 counting only the distinct ones).

The product of its digits is 15552, while the sum is 30.

The square root of 263213364 is about 16223.8517005056. The cubic root of 263213364 is about 640.8690699877.

The spelling of 263213364 in words is "two hundred sixty-three million, two hundred thirteen thousand, three hundred sixty-four".