233220140 has 24 divisors (see below), whose sum is σ = 499005360. Its totient is φ = 91527488.

The previous prime is 233220109. The next prime is 233220149. The reversal of 233220140 is 41022332.

233220140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (233220149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108950 + ... + 111069.

It is an arithmetic number, because the mean of its divisors is an integer number (20791890).

Almost surely, 2^233220140 is an apocalyptic number.

233220140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233220140 is an abundant number, since it is smaller than the sum of its proper divisors (265785220).

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

233220140 is a wasteful number, since it uses less digits than its factorization.

233220140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220081 (or 220079 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 233220140 is about 15271.5467455003. The cubic root of 233220140 is about 615.5386824103.

Adding to 233220140 its reverse (41022332), we get a palindrome (274242472).

The spelling of 233220140 in words is "two hundred thirty-three million, two hundred twenty thousand, one hundred forty".