2021522832 has 300 divisors, whose sum is σ = 6886295856. Its totient is φ = 573168960.

The previous prime is 2021522827. The next prime is 2021522891. The reversal of 2021522832 is 2382251202.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2021522796 and 2021522805.

It is an unprimeable number.

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 59 ways as a sum of consecutive naturals, for example, 15431407 + ... + 15431537.

Almost surely, 2^2021522832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021522832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3443147928).

2021522832 is an abundant number, since it is smaller than the sum of its proper divisors (4864773024).

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

2021522832 is an frugal number, since it uses more digits than its factorization.

2021522832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2021522832 is about 44961.3482004266. The cubic root of 2021522832 is about 1264.4244455306.

The spelling of 2021522832 in words is "two billion, twenty-one million, five hundred twenty-two thousand, eight hundred thirty-two".