234311020 has 72 divisors (see below), whose sum is σ = 518488992. Its totient is φ = 88922880.

The previous prime is 234311003. The next prime is 234311053. The reversal of 234311020 is 20113432.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 234310985 and 234311003.

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, 1402977 + ... + 1403143.

It is an arithmetic number, because the mean of its divisors is an integer number (7201236).

Almost surely, 2^234311020 is an apocalyptic number.

234311020 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 234311020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259244496).

234311020 is an abundant number, since it is smaller than the sum of its proper divisors (284177972).

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

234311020 is a wasteful number, since it uses less digits than its factorization.

234311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 234311020 is about 15307.2211717215. The cubic root of 234311020 is about 616.4969109885.

Adding to 234311020 its reverse (20113432), we get a palindrome (254424452).

The spelling of 234311020 in words is "two hundred thirty-four million, three hundred eleven thousand, twenty".