263394164 has 12 divisors (see below), whose sum is σ = 502843488. Its totient is φ = 119724600.

The previous prime is 263394161. The next prime is 263394179. The reversal of 263394164 is 461493362.

It is a happy number.

263394164 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263394161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2993072 + ... + 2993159.

It is an arithmetic number, because the mean of its divisors is an integer number (41903624).

Almost surely, 2^263394164 is an apocalyptic number.

It is an amenable number.

263394164 is a deficient number, since it is larger than the sum of its proper divisors (239449324).

263394164 is a wasteful number, since it uses less digits than its factorization.

263394164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5986246 (or 5986244 counting only the distinct ones).

The product of its digits is 93312, while the sum is 38.

The square root of 263394164 is about 16229.4227870248. The cubic root of 263394164 is about 641.0157730353.

It can be divided in two parts, 26339 and 4164, that added together give a palindrome (30503).

The spelling of 263394164 in words is "two hundred sixty-three million, three hundred ninety-four thousand, one hundred sixty-four".