2043220428 has 18 divisors (see below), whose sum is σ = 5164807284. Its totient is φ = 681073464.

The previous prime is 2043220427. The next prime is 2043220469. The reversal of 2043220428 is 8240223402.

2043220428 is a `hidden beast` number, since 2 + 0 + 432 + 204 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (2043220427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28378026 + ... + 28378097.

It is an arithmetic number, because the mean of its divisors is an integer number (286933738).

Almost surely, 2^2043220428 is an apocalyptic number.

It is an amenable number.

2043220428 is an abundant number, since it is smaller than the sum of its proper divisors (3121586856).

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

2043220428 is a wasteful number, since it uses less digits than its factorization.

2043220428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56756133 (or 56756128 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 2043220428 is about 45201.9958408918. The cubic root of 2043220428 is about 1268.9321687257.

The spelling of 2043220428 in words is "two billion, forty-three million, two hundred twenty thousand, four hundred twenty-eight".