213403616 has 24 divisors (see below), whose sum is σ = 421140384. Its totient is φ = 106447360.

The previous prime is 213403613. The next prime is 213403627. The reversal of 213403616 is 616304312.

It is a super-2 number, since 2×213403616² = 91082206643750912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213403613) 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, 6056 + ... + 21528.

It is an arithmetic number, because the mean of its divisors is an integer number (17547516).

Almost surely, 2^213403616 is an apocalyptic number.

It is an amenable number.

213403616 is a deficient number, since it is larger than the sum of its proper divisors (207736768).

213403616 is a wasteful number, since it uses less digits than its factorization.

213403616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15914 (or 15906 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 213403616 is about 14608.3406312969. The cubic root of 213403616 is about 597.5862433939.

Adding to 213403616 its reverse (616304312), we get a palindrome (829707928).

The spelling of 213403616 in words is "two hundred thirteen million, four hundred three thousand, six hundred sixteen".