213602020 has 12 divisors (see below), whose sum is σ = 448564284. Its totient is φ = 85440800.

The previous prime is 213602003. The next prime is 213602021. The reversal of 213602020 is 20206312.

It can be written as a sum of positive squares in 2 ways, for example, as 23658496 + 189943524 = 4864^2 + 13782^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213601985 and 213602003.

It is not an unprimeable number, because it can be changed into a prime (213602021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5340031 + ... + 5340070.

It is an arithmetic number, because the mean of its divisors is an integer number (37380357).

Almost surely, 2^213602020 is an apocalyptic number.

213602020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213602020 is an abundant number, since it is smaller than the sum of its proper divisors (234962264).

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

213602020 is a wasteful number, since it uses less digits than its factorization.

213602020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10680110 (or 10680108 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 213602020 is about 14615.1298317873. The cubic root of 213602020 is about 597.7713804890.

Adding to 213602020 its reverse (20206312), we get a palindrome (233808332).

The spelling of 213602020 in words is "two hundred thirteen million, six hundred two thousand, twenty".