2173858432 has 32 divisors (see below), whose sum is σ = 4519032480. Its totient is φ = 1039670016.

The previous prime is 2173858411. The next prime is 2173858439. The reversal of 2173858432 is 2348583712.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (2173858439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366258 + ... + 372145.

It is an arithmetic number, because the mean of its divisors is an integer number (141219765).

Almost surely, 2^2173858432 is an apocalyptic number.

It is an amenable number.

2173858432 is an abundant number, since it is smaller than the sum of its proper divisors (2345174048).

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

2173858432 is an equidigital number, since it uses as much as digits as its factorization.

2173858432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738440 (or 738428 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 2173858432 is about 46624.6547654779. The cubic root of 2173858432 is about 1295.4194676780.

The spelling of 2173858432 in words is "two billion, one hundred seventy-three million, eight hundred fifty-eight thousand, four hundred thirty-two".