234007220 has 48 divisors (see below), whose sum is σ = 508924416. Its totient is φ = 90288000.

The previous prime is 234007217. The next prime is 234007223. The reversal of 234007220 is 22700432.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (234007217) and next prime (234007223).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 234007192 and 234007201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234007223) 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, 353690 + ... + 354350.

It is an arithmetic number, because the mean of its divisors is an integer number (10602592).

Almost surely, 2^234007220 is an apocalyptic number.

234007220 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 234007220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254462208).

234007220 is an abundant number, since it is smaller than the sum of its proper divisors (274917196).

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

234007220 is a wasteful number, since it uses less digits than its factorization.

234007220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272 (or 1270 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 234007220 is about 15297.2945320406. The cubic root of 234007220 is about 616.2303525123.

Adding to 234007220 its reverse (22700432), we get a palindrome (256707652).

The spelling of 234007220 in words is "two hundred thirty-four million, seven thousand, two hundred twenty".