234421420 has 24 divisors (see below), whose sum is σ = 492915024. Its totient is φ = 93648576.

The previous prime is 234421417. The next prime is 234421433. The reversal of 234421420 is 24124432.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 234421391 and 234421400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9454 + ... + 23626.

It is an arithmetic number, because the mean of its divisors is an integer number (20538126).

Almost surely, 2^234421420 is an apocalyptic number.

234421420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234421420 is an abundant number, since it is smaller than the sum of its proper divisors (258493604).

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

234421420 is a wasteful number, since it uses less digits than its factorization.

234421420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15009 (or 15007 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 234421420 is about 15310.8268881860. The cubic root of 234421420 is about 616.5937204519.

Adding to 234421420 its reverse (24124432), we get a palindrome (258545852).

The spelling of 234421420 in words is "two hundred thirty-four million, four hundred twenty-one thousand, four hundred twenty".