210020518 has 16 divisors (see below), whose sum is σ = 317504880. Its totient is φ = 104188896.

The previous prime is 210020513. The next prime is 210020519. The reversal of 210020518 is 815020012.

It is a junction number, because it is equal to n+sod(n) for n = 210020495 and 210020504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210020513) 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, 252928 + ... + 253756.

It is an arithmetic number, because the mean of its divisors is an integer number (19844055).

Almost surely, 2^210020518 is an apocalyptic number.

210020518 is a deficient number, since it is larger than the sum of its proper divisors (107484362).

210020518 is a wasteful number, since it uses less digits than its factorization.

210020518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 210020518 is about 14492.0846671554. The cubic root of 210020518 is about 594.4115529619.

The spelling of 210020518 in words is "two hundred ten million, twenty thousand, five hundred eighteen".