20773038 has 96 divisors (see below), whose sum is σ = 51480576. Its totient is φ = 5544000.

The previous prime is 20772949. The next prime is 20773043. The reversal of 20773038 is 83037702.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20772996 and 20773014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 292543 + ... + 292613.

It is an arithmetic number, because the mean of its divisors is an integer number (536256).

Almost surely, 2^20773038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20773038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25740288).

20773038 is an abundant number, since it is smaller than the sum of its proper divisors (30707538).

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

20773038 is a wasteful number, since it uses less digits than its factorization.

20773038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 20773038 is about 4557.7448370877. The cubic root of 20773038 is about 274.8948931659.

It can be divided in two parts, 2077 and 3038, that added together give a palindrome (5115).

The spelling of 20773038 in words is "twenty million, seven hundred seventy-three thousand, thirty-eight".