268432398 has 96 divisors (see below), whose sum is σ = 645345792. Its totient is φ = 80136000.

The previous prime is 268432393. The next prime is 268432421. The reversal of 268432398 is 893234862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268432393) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1777623 + ... + 1777773.

It is an arithmetic number, because the mean of its divisors is an integer number (6722352).

Almost surely, 2^268432398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268432398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322672896).

268432398 is an abundant number, since it is smaller than the sum of its proper divisors (376913394).

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

268432398 is a wasteful number, since it uses less digits than its factorization.

268432398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 347 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 268432398 is about 16383.9066769803. The cubic root of 268432398 is about 645.0771279681.

It can be divided in two parts, 26843 and 2398, that added together give a square (29241 = 171²).

The spelling of 268432398 in words is "two hundred sixty-eight million, four hundred thirty-two thousand, three hundred ninety-eight".