2889432021 has 8 divisors (see below), whose sum is σ = 4402944064. Its totient is φ = 1651104000.

The previous prime is 2889431977. The next prime is 2889432037. The reversal of 2889432021 is 1202349882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2889432021 - 2⁷ = 2889431893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2889432061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68795980 + ... + 68796021.

It is an arithmetic number, because the mean of its divisors is an integer number (550368008).

Almost surely, 2^2889432021 is an apocalyptic number.

2889432021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2889432021 is a deficient number, since it is larger than the sum of its proper divisors (1513512043).

2889432021 is a wasteful number, since it uses less digits than its factorization.

2889432021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137592011.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 2889432021 is about 53753.4372947442. The cubic root of 2889432021 is about 1424.3088095165.

The spelling of 2889432021 in words is "two billion, eight hundred eighty-nine million, four hundred thirty-two thousand, twenty-one".