213605434 has 16 divisors (see below), whose sum is σ = 366385536. Its totient is φ = 91494000.

The previous prime is 213605419. The next prime is 213605437. The reversal of 213605434 is 434506312.

It is not an unprimeable number, because it can be changed into a prime (213605437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32724 + ... + 38704.

It is an arithmetic number, because the mean of its divisors is an integer number (22899096).

Almost surely, 2^213605434 is an apocalyptic number.

213605434 is a deficient number, since it is larger than the sum of its proper divisors (152780102).

213605434 is a wasteful number, since it uses less digits than its factorization.

213605434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8541.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 213605434 is about 14615.2466280936. The cubic root of 213605434 is about 597.7745651977.

The spelling of 213605434 in words is "two hundred thirteen million, six hundred five thousand, four hundred thirty-four".