210765252 has 48 divisors (see below), whose sum is σ = 548130240. Its totient is φ = 62641152.

The previous prime is 210765239. The next prime is 210765277. The reversal of 210765252 is 252567012.

It is an alternating number because its digits alternate between even and odd.

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, 23313 + ... + 31064.

It is an arithmetic number, because the mean of its divisors is an integer number (11419380).

Almost surely, 2^210765252 is an apocalyptic number.

It is an amenable number.

210765252 is an abundant number, since it is smaller than the sum of its proper divisors (337364988).

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

210765252 is a wasteful number, since it uses less digits than its factorization.

210765252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54420 (or 54418 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 210765252 is about 14517.7564382380. The cubic root of 210765252 is about 595.1133197530.

The spelling of 210765252 in words is "two hundred ten million, seven hundred sixty-five thousand, two hundred fifty-two".