210071020 has 12 divisors (see below), whose sum is σ = 441149184. Its totient is φ = 84028400.

The previous prime is 210071009. The next prime is 210071053. The reversal of 210071020 is 20170012.

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, 5251756 + ... + 5251795.

It is an arithmetic number, because the mean of its divisors is an integer number (36762432).

Almost surely, 2^210071020 is an apocalyptic number.

210071020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210071020 is an abundant number, since it is smaller than the sum of its proper divisors (231078164).

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

210071020 is a wasteful number, since it uses less digits than its factorization.

210071020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10503560 (or 10503558 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 210071020 is about 14493.8269618483. The cubic root of 210071020 is about 594.4591936507.

The spelling of 210071020 in words is "two hundred ten million, seventy-one thousand, twenty".