268504236 has 144 divisors (see below), whose sum is σ = 911409408. Its totient is φ = 64368000.

The previous prime is 268504217. The next prime is 268504259. The reversal of 268504236 is 632405862.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 268504236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32311 + ... + 39761.

It is an arithmetic number, because the mean of its divisors is an integer number (6329232).

Almost surely, 2^268504236 is an apocalyptic number.

268504236 is a gapful number since it is divisible by the number (26) 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 268504236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455704704).

268504236 is an abundant number, since it is smaller than the sum of its proper divisors (642905172).

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

268504236 is a wasteful number, since it uses less digits than its factorization.

268504236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7492 (or 7487 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 268504236 is about 16386.0988645864. The cubic root of 268504236 is about 645.1346681132.

The spelling of 268504236 in words is "two hundred sixty-eight million, five hundred four thousand, two hundred thirty-six".