263993064 has 16 divisors (see below), whose sum is σ = 659982720. Its totient is φ = 87997680.

The previous prime is 263993063. The next prime is 263993069. The reversal of 263993064 is 460399362.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (263993063) 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 3 ways as a sum of consecutive naturals, for example, 5499832 + ... + 5499879.

It is an arithmetic number, because the mean of its divisors is an integer number (41248920).

Almost surely, 2^263993064 is an apocalyptic number.

263993064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

263993064 is an abundant number, since it is smaller than the sum of its proper divisors (395989656).

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

263993064 is a wasteful number, since it uses less digits than its factorization.

263993064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10999720 (or 10999716 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 42.

The square root of 263993064 is about 16247.8633672246. The cubic root of 263993064 is about 641.5012479050.

It can be divided in two parts, 2639 and 93064, that added together give a triangular number (95703 = T₄₃₇).

The spelling of 263993064 in words is "two hundred sixty-three million, nine hundred ninety-three thousand, sixty-four".