210345530 has 32 divisors (see below), whose sum is σ = 383056128. Its totient is φ = 83160000.

The previous prime is 210345491. The next prime is 210345547. The reversal of 210345530 is 35543012.

210345530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 210345496 and 210345505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454079 + ... + 454541.

It is an arithmetic number, because the mean of its divisors is an integer number (11970504).

Almost surely, 2^210345530 is an apocalyptic number.

210345530 is a deficient number, since it is larger than the sum of its proper divisors (172710598).

210345530 is a wasteful number, since it uses less digits than its factorization.

210345530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 210345530 is about 14503.2937638317. The cubic root of 210345530 is about 594.7180171733.

Adding to 210345530 its reverse (35543012), we get a palindrome (245888542).

The spelling of 210345530 in words is "two hundred ten million, three hundred forty-five thousand, five hundred thirty".