213434434 has 8 divisors (see below), whose sum is σ = 334071360. Its totient is φ = 102077316.

The previous prime is 213434401. The next prime is 213434471. The reversal of 213434434 is 434434312.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2319894 + ... + 2319985.

It is an arithmetic number, because the mean of its divisors is an integer number (41758920).

Almost surely, 2^213434434 is an apocalyptic number.

213434434 is a deficient number, since it is larger than the sum of its proper divisors (120636926).

213434434 is a wasteful number, since it uses less digits than its factorization.

213434434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4639904.

The product of its digits is 13824, while the sum is 28.

The square root of 213434434 is about 14609.3954015900. The cubic root of 213434434 is about 597.6150081773.

Adding to 213434434 its reverse (434434312), we get a palindrome (647868746).

The spelling of 213434434 in words is "two hundred thirteen million, four hundred thirty-four thousand, four hundred thirty-four".