210475940 has 12 divisors (see below), whose sum is σ = 441999516. Its totient is φ = 84190368.

The previous prime is 210475931. The next prime is 210475999. The reversal of 210475940 is 49574012.

It is a happy number.

210475940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 123165604 + 87310336 = 11098^2 + 9344^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210475897 and 210475906.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5261879 + ... + 5261918.

It is an arithmetic number, because the mean of its divisors is an integer number (36833293).

Almost surely, 2^210475940 is an apocalyptic number.

210475940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210475940 is an abundant number, since it is smaller than the sum of its proper divisors (231523576).

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

210475940 is a wasteful number, since it uses less digits than its factorization.

210475940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10523806 (or 10523804 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 210475940 is about 14507.7889424957. The cubic root of 210475940 is about 594.8408961876.

The spelling of 210475940 in words is "two hundred ten million, four hundred seventy-five thousand, nine hundred forty".