2192728305 has 8 divisors (see below), whose sum is σ = 3508365312. Its totient is φ = 1169455088.

The previous prime is 2192728273. The next prime is 2192728319. The reversal of 2192728305 is 5038272912.

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

It is a cyclic number.

It is not a de Polignac number, because 2192728305 - 2⁵ = 2192728273 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73090929 + ... + 73090958.

It is an arithmetic number, because the mean of its divisors is an integer number (438545664).

Almost surely, 2^2192728305 is an apocalyptic number.

It is an amenable number.

2192728305 is a deficient number, since it is larger than the sum of its proper divisors (1315637007).

2192728305 is a wasteful number, since it uses less digits than its factorization.

2192728305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146181895.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 2192728305 is about 46826.5769088453. The cubic root of 2192728305 is about 1299.1569099558.

The spelling of 2192728305 in words is "two billion, one hundred ninety-two million, seven hundred twenty-eight thousand, three hundred five".