210734140 has 24 divisors (see below), whose sum is σ = 444647952. Its totient is φ = 83892480.

The previous prime is 210734123. The next prime is 210734171. The reversal of 210734140 is 41437012.

210734140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20749 + ... + 29188.

It is an arithmetic number, because the mean of its divisors is an integer number (18526998).

Almost surely, 2^210734140 is an apocalyptic number.

210734140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210734140 is an abundant number, since it is smaller than the sum of its proper divisors (233913812).

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

210734140 is a wasteful number, since it uses less digits than its factorization.

210734140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50157 (or 50155 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 210734140 is about 14516.6848832645. The cubic root of 210734140 is about 595.0840358672.

The spelling of 210734140 in words is "two hundred ten million, seven hundred thirty-four thousand, one hundred forty".