232405420 has 72 divisors (see below), whose sum is σ = 546935760. Its totient is φ = 82817280.

The previous prime is 232405417. The next prime is 232405421. The reversal of 232405420 is 24504232.

It is a junction number, because it is equal to n+sod(n) for n = 232405391 and 232405400.

It is not an unprimeable number, because it can be changed into a prime (232405421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96835 + ... + 99205.

It is an arithmetic number, because the mean of its divisors is an integer number (7596330).

Almost surely, 2^232405420 is an apocalyptic number.

232405420 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 232405420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273467880).

232405420 is an abundant number, since it is smaller than the sum of its proper divisors (314530340).

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

232405420 is a wasteful number, since it uses less digits than its factorization.

232405420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435 (or 2420 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 232405420 is about 15244.8489661262. The cubic root of 232405420 is about 614.8210817583.

Adding to 232405420 its reverse (24504232), we get a palindrome (256909652).

The spelling of 232405420 in words is "two hundred thirty-two million, four hundred five thousand, four hundred twenty".