210043434 has 16 divisors (see below), whose sum is σ = 420694560. Its totient is φ = 69913200.

The previous prime is 210043409. The next prime is 210043447. The reversal of 210043434 is 434340012.

It is a self number, because there is not a number n which added to its sum of digits gives 210043434.

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, 20764 + ... + 29175.

It is an arithmetic number, because the mean of its divisors is an integer number (26293410).

Almost surely, 2^210043434 is an apocalyptic number.

210043434 is an abundant number, since it is smaller than the sum of its proper divisors (210651126).

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

210043434 is a wasteful number, since it uses less digits than its factorization.

210043434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50645.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 210043434 is about 14492.8752840836. The cubic root of 210043434 is about 594.4331715476.

Adding to 210043434 its reverse (434340012), we get a palindrome (644383446).

The spelling of 210043434 in words is "two hundred ten million, forty-three thousand, four hundred thirty-four".