268409394 has 96 divisors (see below), whose sum is σ = 655993728. Its totient is φ = 78624000.

The previous prime is 268409381. The next prime is 268409423. The reversal of 268409394 is 493904862.

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, 857382 + ... + 857694.

It is an arithmetic number, because the mean of its divisors is an integer number (6833268).

Almost surely, 2^268409394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268409394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327996864).

268409394 is an abundant number, since it is smaller than the sum of its proper divisors (387584334).

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

268409394 is a wasteful number, since it uses less digits than its factorization.

268409394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 268409394 is about 16383.2046315732. The cubic root of 268409394 is about 645.0587002643.

The spelling of 268409394 in words is "two hundred sixty-eight million, four hundred nine thousand, three hundred ninety-four".