2171428584 has 32 divisors (see below), whose sum is σ = 5846154720. Its totient is φ = 668131776.

The previous prime is 2171428579. The next prime is 2171428591. The reversal of 2171428584 is 4858241712.

2171428584 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3479542 + ... + 3480165.

It is an arithmetic number, because the mean of its divisors is an integer number (182692335).

Almost surely, 2^2171428584 is an apocalyptic number.

2171428584 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2171428584 is an abundant number, since it is smaller than the sum of its proper divisors (3674726136).

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

2171428584 is a wasteful number, since it uses less digits than its factorization.

2171428584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6959729 (or 6959725 counting only the distinct ones).

The product of its digits is 143360, while the sum is 42.

The square root of 2171428584 is about 46598.5899357481. The cubic root of 2171428584 is about 1294.9366325090.

The spelling of 2171428584 in words is "two billion, one hundred seventy-one million, four hundred twenty-eight thousand, five hundred eighty-four".