20294923 has 8 divisors (see below), whose sum is σ = 23442480. Its totient is φ = 17364480.

The previous prime is 20294917. The next prime is 20294933. The reversal of 20294923 is 32949202.

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

It is not a de Polignac number, because 20294923 - 2⁵ = 20294891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20294933) by changing a digit.

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, 54078 + ... + 54451.

It is an arithmetic number, because the mean of its divisors is an integer number (2930310).

Almost surely, 2^20294923 is an apocalyptic number.

20294923 is a deficient number, since it is larger than the sum of its proper divisors (3147557).

20294923 is a wasteful number, since it uses less digits than its factorization.

20294923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108557.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 20294923 is about 4504.9886792311. The cubic root of 20294923 is about 272.7694968732.

The spelling of 20294923 in words is "twenty million, two hundred ninety-four thousand, nine hundred twenty-three".