234203220 has 72 divisors (see below), whose sum is σ = 752215464. Its totient is φ = 58779648.

The previous prime is 234203219. The next prime is 234203243. The reversal of 234203220 is 22302432.

234203220 is a `hidden beast` number, since 2 + 342 + 0 + 322 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 118984464 + 115218756 = 10908^2 + 10734^2 .

It is a super-2 number, since 2×234203220² = 109702296516736800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 234203193 and 234203202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35209 + ... + 41328.

It is an arithmetic number, because the mean of its divisors is an integer number (10447437).

Almost surely, 2^234203220 is an apocalyptic number.

234203220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234203220 is an abundant number, since it is smaller than the sum of its proper divisors (518012244).

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

234203220 is a wasteful number, since it uses less digits than its factorization.

234203220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76569 (or 76564 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 234203220 is about 15303.6995527225. The cubic root of 234203220 is about 616.4023521105.

Adding to 234203220 its reverse (22302432), we get a palindrome (256505652).

The spelling of 234203220 in words is "two hundred thirty-four million, two hundred three thousand, two hundred twenty".