210047430 has 16 divisors (see below), whose sum is σ = 504113904. Its totient is φ = 56012640.

The previous prime is 210047429. The next prime is 210047437. The reversal of 210047430 is 34740012.

It is a junction number, because it is equal to n+sod(n) for n = 210047397 and 210047406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210047437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3500761 + ... + 3500820.

It is an arithmetic number, because the mean of its divisors is an integer number (31507119).

Almost surely, 2^210047430 is an apocalyptic number.

210047430 is an abundant number, since it is smaller than the sum of its proper divisors (294066474).

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

210047430 is a wasteful number, since it uses less digits than its factorization.

210047430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7001591.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 210047430 is about 14493.0131442706. The cubic root of 210047430 is about 594.4369411487.

Adding to 210047430 its reverse (34740012), we get a palindrome (244787442).

The spelling of 210047430 in words is "two hundred ten million, forty-seven thousand, four hundred thirty".