20220774 has 16 divisors (see below), whose sum is σ = 46219008. Its totient is φ = 5777352.

The previous prime is 20220751. The next prime is 20220791. The reversal of 20220774 is 47702202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240682 + ... + 240765.

It is an arithmetic number, because the mean of its divisors is an integer number (2888688).

Almost surely, 2^20220774 is an apocalyptic number.

20220774 is an abundant number, since it is smaller than the sum of its proper divisors (25998234).

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

20220774 is a wasteful number, since it uses less digits than its factorization.

20220774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481459.

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 20220774 is about 4496.7514941344. The cubic root of 20220774 is about 272.4368969839.

Adding to 20220774 its reverse (47702202), we get a palindrome (67922976).

The spelling of 20220774 in words is "twenty million, two hundred twenty thousand, seven hundred seventy-four".