268137804 has 144 divisors (see below), whose sum is σ = 765023616. Its totient is φ = 72230400.

The previous prime is 268137781. The next prime is 268137829. The reversal of 268137804 is 408731862.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 809919 + ... + 810249.

It is an arithmetic number, because the mean of its divisors is an integer number (5312664).

Almost surely, 2^268137804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268137804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382511808).

268137804 is an abundant number, since it is smaller than the sum of its proper divisors (496885812).

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

268137804 is a wasteful number, since it uses less digits than its factorization.

268137804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 268137804 is about 16374.9138623689. The cubic root of 268137804 is about 644.8410593288.

The spelling of 268137804 in words is "two hundred sixty-eight million, one hundred thirty-seven thousand, eight hundred four".