233081992 has 64 divisors (see below), whose sum is σ = 520652160. Its totient is φ = 96422400.

The previous prime is 233081983. The next prime is 233081993. The reversal of 233081992 is 299180332.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (233081993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82117 + ... + 84907.

It is an arithmetic number, because the mean of its divisors is an integer number (8135190).

Almost surely, 2^233081992 is an apocalyptic number.

233081992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 233081992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260326080).

233081992 is an abundant number, since it is smaller than the sum of its proper divisors (287570168).

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

233081992 is a wasteful number, since it uses less digits than its factorization.

233081992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2894 (or 2890 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 233081992 is about 15267.0230234974. The cubic root of 233081992 is about 615.4171202478.

The spelling of 233081992 in words is "two hundred thirty-three million, eighty-one thousand, nine hundred ninety-two".