213425320 has 16 divisors (see below), whose sum is σ = 480207060. Its totient is φ = 85370112.

The previous prime is 213425291. The next prime is 213425321. The reversal of 213425320 is 23524312.

It can be written as a sum of positive squares in 2 ways, for example, as 205234276 + 8191044 = 14326^2 + 2862^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213425291 and 213425300.

It is not an unprimeable number, because it can be changed into a prime (213425321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2667777 + ... + 2667856.

Almost surely, 2^213425320 is an apocalyptic number.

213425320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213425320 is an abundant number, since it is smaller than the sum of its proper divisors (266781740).

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

213425320 is a wasteful number, since it uses less digits than its factorization.

213425320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5335644 (or 5335640 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 213425320 is about 14609.0834757010. The cubic root of 213425320 is about 597.6065016762.

Adding to 213425320 its reverse (23524312), we get a palindrome (236949632).

It can be divided in two parts, 21342 and 5320, that added together give a palindrome (26662).

The spelling of 213425320 in words is "two hundred thirteen million, four hundred twenty-five thousand, three hundred twenty".