20078073 has 12 divisors (see below), whose sum is σ = 29059888. Its totient is φ = 13358520.

The previous prime is 20078059. The next prime is 20078081. The reversal of 20078073 is 37087002.

It is not a de Polignac number, because 20078073 - 2⁸ = 20077817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20078053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3186 + ... + 7092.

Almost surely, 2^20078073 is an apocalyptic number.

It is an amenable number.

20078073 is a deficient number, since it is larger than the sum of its proper divisors (8981815).

20078073 is a wasteful number, since it uses less digits than its factorization.

20078073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4484 (or 4481 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 20078073 is about 4480.8562797751. The cubic root of 20078073 is about 271.7945076023.

The spelling of 20078073 in words is "twenty million, seventy-eight thousand, seventy-three".