2021743472 has 20 divisors (see below), whose sum is σ = 4476717936. Its totient is φ = 866461440.

The previous prime is 2021743453. The next prime is 2021743481. The reversal of 2021743472 is 2743471202.

It is a super-2 number, since 2×2021743472² = 8174893333149229568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9025529 + ... + 9025752.

Almost surely, 2^2021743472 is an apocalyptic number.

It is an amenable number.

2021743472 is an abundant number, since it is smaller than the sum of its proper divisors (2454974464).

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

2021743472 is a wasteful number, since it uses less digits than its factorization.

2021743472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18051296 (or 18051290 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 2021743472 is about 44963.8017965563. The cubic root of 2021743472 is about 1264.4704459115.

The spelling of 2021743472 in words is "two billion, twenty-one million, seven hundred forty-three thousand, four hundred seventy-two".