234390220 has 24 divisors (see below), whose sum is σ = 521174304. Its totient is φ = 88240896.

The previous prime is 234390197. The next prime is 234390223. The reversal of 234390220 is 22093432.

234390220 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 (234390223) 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, 344352 + ... + 345031.

It is an arithmetic number, because the mean of its divisors is an integer number (21715596).

Almost surely, 2^234390220 is an apocalyptic number.

234390220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234390220 is an abundant number, since it is smaller than the sum of its proper divisors (286784084).

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

234390220 is a wasteful number, since it uses less digits than its factorization.

234390220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689409 (or 689407 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 234390220 is about 15309.8079674436. The cubic root of 234390220 is about 616.5663643374.

The spelling of 234390220 in words is "two hundred thirty-four million, three hundred ninety thousand, two hundred twenty".