20192845 has 16 divisors (see below), whose sum is σ = 25608960. Its totient is φ = 15260224.

The previous prime is 20192831. The next prime is 20192849. The reversal of 20192845 is 54829102.

It is a cyclic number.

It is not a de Polignac number, because 20192845 - 2⁷ = 20192717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20192849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5334 + ... + 8296.

It is an arithmetic number, because the mean of its divisors is an integer number (1600560).

Almost surely, 2^20192845 is an apocalyptic number.

It is an amenable number.

20192845 is a deficient number, since it is larger than the sum of its proper divisors (5416115).

20192845 is a wasteful number, since it uses less digits than its factorization.

20192845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3044.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 20192845 is about 4493.6449570477. The cubic root of 20192845 is about 272.3114089432.

The spelling of 20192845 in words is "twenty million, one hundred ninety-two thousand, eight hundred forty-five".