20773158 has 24 divisors (see below), whose sum is σ = 48330072. Its totient is φ = 5935104.

The previous prime is 20773153. The next prime is 20773177. The reversal of 20773158 is 85137702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20773153) 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, 35035 + ... + 35622.

It is an arithmetic number, because the mean of its divisors is an integer number (2013753).

Almost surely, 2^20773158 is an apocalyptic number.

20773158 is an abundant number, since it is smaller than the sum of its proper divisors (27556914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20773158 is a wasteful number, since it uses less digits than its factorization.

20773158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70676 (or 70669 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 20773158 is about 4557.7580014740. The cubic root of 20773158 is about 274.8954224951.

The spelling of 20773158 in words is "twenty million, seven hundred seventy-three thousand, one hundred fifty-eight".