213676424 has 16 divisors (see below), whose sum is σ = 431462220. Its totient is φ = 98619840.

The previous prime is 213676409. The next prime is 213676453. The reversal of 213676424 is 424676312.

It can be written as a sum of positive squares in 2 ways, for example, as 185776900 + 27899524 = 13630^2 + 5282^2 .

It is a super-2 number, since 2×213676424² = 91315228346855552, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 1027187 + ... + 1027394.

Almost surely, 2^213676424 is an apocalyptic number.

It is an amenable number.

213676424 is an abundant number, since it is smaller than the sum of its proper divisors (217785796).

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

213676424 is a wasteful number, since it uses less digits than its factorization.

213676424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054600 (or 2054596 counting only the distinct ones).

The product of its digits is 48384, while the sum is 35.

The square root of 213676424 is about 14617.6750545359. The cubic root of 213676424 is about 597.8407796745.

The spelling of 213676424 in words is "two hundred thirteen million, six hundred seventy-six thousand, four hundred twenty-four".