2172493042 has 8 divisors (see below), whose sum is σ = 3334524336. Its totient is φ = 1060984932.

The previous prime is 2172493039. The next prime is 2172493091. The reversal of 2172493042 is 2403942712.

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

It is a junction number, because it is equal to n+sod(n) for n = 2172492989 and 2172493007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12630688 + ... + 12630859.

It is an arithmetic number, because the mean of its divisors is an integer number (416815542).

Almost surely, 2^2172493042 is an apocalyptic number.

2172493042 is a deficient number, since it is larger than the sum of its proper divisors (1162031294).

2172493042 is a wasteful number, since it uses less digits than its factorization.

2172493042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25261592.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 2172493042 is about 46610.0101051266. The cubic root of 2172493042 is about 1295.1481953012.

The spelling of 2172493042 in words is "two billion, one hundred seventy-two million, four hundred ninety-three thousand, forty-two".