232420520 has 64 divisors (see below), whose sum is σ = 548363520. Its totient is φ = 88489984.

The previous prime is 232420519. The next prime is 232420561. The reversal of 232420520 is 25024232.

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 = 232420492 and 232420501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235949 + ... + 236931.

It is an arithmetic number, because the mean of its divisors is an integer number (8568180).

Almost surely, 2^232420520 is an apocalyptic number.

232420520 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 232420520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274181760).

232420520 is an abundant number, since it is smaller than the sum of its proper divisors (315943000).

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

232420520 is a wasteful number, since it uses less digits than its factorization.

232420520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274 (or 1270 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 232420520 is about 15245.3442073310. The cubic root of 232420520 is about 614.8343969917.

Adding to 232420520 its reverse (25024232), we get a palindrome (257444752).

The spelling of 232420520 in words is "two hundred thirty-two million, four hundred twenty thousand, five hundred twenty".