233281398 has 64 divisors (see below), whose sum is σ = 554065920. Its totient is φ = 64096032.

The previous prime is 233281333. The next prime is 233281409. The reversal of 233281398 is 893182332.

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 31 ways as a sum of consecutive naturals, for example, 115465 + ... + 117467.

It is an arithmetic number, because the mean of its divisors is an integer number (8657280).

Almost surely, 2^233281398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 233281398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277032960).

233281398 is an abundant number, since it is smaller than the sum of its proper divisors (320784522).

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

233281398 is a wasteful number, since it uses less digits than its factorization.

233281398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121.

The product of its digits is 62208, while the sum is 39.

The square root of 233281398 is about 15273.5522390831. The cubic root of 233281398 is about 615.5925705061.

The spelling of 233281398 in words is "two hundred thirty-three million, two hundred eighty-one thousand, three hundred ninety-eight".