2021623030 has 16 divisors (see below), whose sum is σ = 4158767520. Its totient is φ = 693127872.

The previous prime is 2021623007. The next prime is 2021623033. The reversal of 2021623030 is 303261202.

It is a junction number, because it is equal to n+sod(n) for n = 2021622989 and 2021623007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021623033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14440095 + ... + 14440234.

It is an arithmetic number, because the mean of its divisors is an integer number (259922970).

Almost surely, 2^2021623030 is an apocalyptic number.

2021623030 is an abundant number, since it is smaller than the sum of its proper divisors (2137144490).

2021623030 is a wasteful number, since it uses less digits than its factorization.

2021623030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28880343.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2021623030 is about 44962.4624548078. The cubic root of 2021623030 is about 1264.4453358392.

Adding to 2021623030 its reverse (303261202), we get a palindrome (2324884232).

The spelling of 2021623030 in words is "two billion, twenty-one million, six hundred twenty-three thousand, thirty".