20220093 has 24 divisors (see below), whose sum is σ = 30748536. Its totient is φ = 12787200.

The previous prime is 20220077. The next prime is 20220103. The reversal of 20220093 is 39002202.

It can be written as a sum of positive squares in 4 ways, for example, as 1790244 + 18429849 = 1338^2 + 4293^2 .

It is not a de Polignac number, because 20220093 - 2⁴ = 20220077 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12913 + ... + 14393.

It is an arithmetic number, because the mean of its divisors is an integer number (1281189).

Almost surely, 2^20220093 is an apocalyptic number.

It is an amenable number.

20220093 is a deficient number, since it is larger than the sum of its proper divisors (10528443).

20220093 is a wasteful number, since it uses less digits than its factorization.

20220093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565 (or 1562 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 20220093 is about 4496.6757721677. The cubic root of 20220093 is about 272.4338385515.

Adding to 20220093 its reverse (39002202), we get a palindrome (59222295).

The spelling of 20220093 in words is "twenty million, two hundred twenty thousand, ninety-three".