2021656230 has 48 divisors (see below), whose sum is σ = 5734155024. Its totient is φ = 490098240.

The previous prime is 2021656211. The next prime is 2021656253. The reversal of 2021656230 is 326561202.

2021656230 is a `hidden beast` number, since 2 + 0 + 2 + 1 + 656 + 2 + 3 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2021656194 and 2021656203.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1020049 + ... + 1022028.

It is an arithmetic number, because the mean of its divisors is an integer number (119461563).

Almost surely, 2^2021656230 is an apocalyptic number.

2021656230 is an abundant number, since it is smaller than the sum of its proper divisors (3712498794).

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

2021656230 is a wasteful number, since it uses less digits than its factorization.

2021656230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042101 (or 2042098 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2021656230 is about 44962.8316501530. The cubic root of 2021656230 is about 1264.4522575641.

The spelling of 2021656230 in words is "two billion, twenty-one million, six hundred fifty-six thousand, two hundred thirty".