2172407682 has 8 divisors (see below), whose sum is σ = 4344815376. Its totient is φ = 724135892.

The previous prime is 2172407669. The next prime is 2172407723. The reversal of 2172407682 is 2867042712.

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

2172407682 is an admirable number.

It is a super-2 number, since 2×2172407682² = 9438710273625226248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2172407682.

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, 181033968 + ... + 181033979.

It is an arithmetic number, because the mean of its divisors is an integer number (543101922).

Almost surely, 2^2172407682 is an apocalyptic number.

2172407682 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2172407682 is a wasteful number, since it uses less digits than its factorization.

2172407682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362067952.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 2172407682 is about 46609.0944130006. The cubic root of 2172407682 is about 1295.1312324087.

The spelling of 2172407682 in words is "two billion, one hundred seventy-two million, four hundred seven thousand, six hundred eighty-two".