263894130 has 48 divisors (see below), whose sum is σ = 688431744. Its totient is φ = 70135200.

The previous prime is 263894119. The next prime is 263894131. The reversal of 263894130 is 31498362.

263894130 is a `hidden beast` number, since 2 + 638 + 9 + 4 + 13 + 0 = 666.

It is a super-2 number, since 2×263894130² = 139280223696913800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (263894131) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 22855 + ... + 32405.

It is an arithmetic number, because the mean of its divisors is an integer number (14342328).

Almost surely, 2^263894130 is an apocalyptic number.

263894130 is an abundant number, since it is smaller than the sum of its proper divisors (424537614).

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

263894130 is a wasteful number, since it uses less digits than its factorization.

263894130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9871 (or 9868 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 263894130 is about 16244.8185585435. The cubic root of 263894130 is about 641.4211015893.

The spelling of 263894130 in words is "two hundred sixty-three million, eight hundred ninety-four thousand, one hundred thirty".