268305534 has 144 divisors (see below), whose sum is σ = 725557248. Its totient is φ = 72748368.

The previous prime is 268305503. The next prime is 268305539. The reversal of 268305534 is 435503862.

It is a happy number.

268305534 is a `hidden beast` number, since 26 + 83 + 0 + 553 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268305539) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2112579 + ... + 2112705.

It is an arithmetic number, because the mean of its divisors is an integer number (5038592).

Almost surely, 2^268305534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268305534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362778624).

268305534 is an abundant number, since it is smaller than the sum of its proper divisors (457251714).

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

268305534 is an equidigital number, since it uses as much as digits as its factorization.

268305534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 268305534 is about 16380.0346153480. The cubic root of 268305534 is about 644.9754885223.

The spelling of 268305534 in words is "two hundred sixty-eight million, three hundred five thousand, five hundred thirty-four".