213620356 has 12 divisors (see below), whose sum is σ = 380172240. Its totient is φ = 104999720.

The previous prime is 213620261. The next prime is 213620371. The reversal of 213620356 is 653026312.

213620356 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452350 + ... + 452821.

It is an arithmetic number, because the mean of its divisors is an integer number (31681020).

Almost surely, 2^213620356 is an apocalyptic number.

It is an amenable number.

213620356 is a deficient number, since it is larger than the sum of its proper divisors (166551884).

213620356 is a wasteful number, since it uses less digits than its factorization.

213620356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905234 (or 905232 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 213620356 is about 14615.7571134717. The cubic root of 213620356 is about 597.7884846069.

Adding to 213620356 its reverse (653026312), we get a palindrome (866646668).

The spelling of 213620356 in words is "two hundred thirteen million, six hundred twenty thousand, three hundred fifty-six".