213322430 has 16 divisors (see below), whose sum is σ = 385016544. Its totient is φ = 85098720.

The previous prime is 213322397. The next prime is 213322457. The reversal of 213322430 is 34223312.

It is a super-2 number, since 2×213322430² = 91012918282209800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24866 + ... + 32325.

It is an arithmetic number, because the mean of its divisors is an integer number (24063534).

Almost surely, 2^213322430 is an apocalyptic number.

213322430 is a deficient number, since it is larger than the sum of its proper divisors (171694114).

213322430 is a wasteful number, since it uses less digits than its factorization.

213322430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57571.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 213322430 is about 14605.5616119340. The cubic root of 213322430 is about 597.5104530655.

Adding to 213322430 its reverse (34223312), we get a palindrome (247545742).

The spelling of 213322430 in words is "two hundred thirteen million, three hundred twenty-two thousand, four hundred thirty".