264278168 has 96 divisors (see below), whose sum is σ = 634314240. Its totient is φ = 102070080.

The previous prime is 264278101. The next prime is 264278219. The reversal of 264278168 is 861872462.

264278168 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 719921 + ... + 720287.

It is an arithmetic number, because the mean of its divisors is an integer number (6607440).

Almost surely, 2^264278168 is an apocalyptic number.

264278168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 264278168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317157120).

264278168 is an abundant number, since it is smaller than the sum of its proper divisors (370036072).

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

264278168 is a wasteful number, since it uses less digits than its factorization.

264278168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565 (or 554 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 264278168 is about 16256.6345840706. The cubic root of 264278168 is about 641.7320983781.

The spelling of 264278168 in words is "two hundred sixty-four million, two hundred seventy-eight thousand, one hundred sixty-eight".