234155220 has 96 divisors (see below), whose sum is σ = 709043328. Its totient is φ = 57395712.

The previous prime is 234155213. The next prime is 234155227. The reversal of 234155220 is 22551432.

It is an interprime number because it is at equal distance from previous prime (234155213) and next prime (234155227).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234155227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 246787 + ... + 247733.

It is an arithmetic number, because the mean of its divisors is an integer number (7385868).

Almost surely, 2^234155220 is an apocalyptic number.

234155220 is a gapful number since it is divisible by the number (20) 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 234155220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354521664).

234155220 is an abundant number, since it is smaller than the sum of its proper divisors (474888108).

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

234155220 is a wasteful number, since it uses less digits than its factorization.

234155220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 234155220 is about 15302.1312241138. The cubic root of 234155220 is about 616.3602386353.

The spelling of 234155220 in words is "two hundred thirty-four million, one hundred fifty-five thousand, two hundred twenty".