20845058 has 8 divisors (see below), whose sum is σ = 33672828. Its totient is φ = 9620784.

The previous prime is 20845057. The next prime is 20845073. The reversal of 20845058 is 85054802.

It can be written as a sum of positive squares in 2 ways, for example, as 18464209 + 2380849 = 4297^2 + 1543^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20845057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400841 + ... + 400892.

Almost surely, 2^20845058 is an apocalyptic number.

20845058 is a deficient number, since it is larger than the sum of its proper divisors (12827770).

20845058 is a wasteful number, since it uses less digits than its factorization.

20845058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801748.

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 20845058 is about 4565.6388381036. The cubic root of 20845058 is about 275.2122130560.

The spelling of 20845058 in words is "twenty million, eight hundred forty-five thousand, fifty-eight".