20220894 has 16 divisors (see below), whose sum is σ = 44935440. Its totient is φ = 6740280.

The previous prime is 20220877. The next prime is 20220901. The reversal of 20220894 is 49802202.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a plaindrome in base 16.

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, 187177 + ... + 187284.

It is an arithmetic number, because the mean of its divisors is an integer number (2808465).

Almost surely, 2^20220894 is an apocalyptic number.

20220894 is an abundant number, since it is smaller than the sum of its proper divisors (24714546).

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

20220894 is a wasteful number, since it uses less digits than its factorization.

20220894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374472 (or 374466 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 20220894 is about 4496.7648370801. The cubic root of 20220894 is about 272.4374359076.

The spelling of 20220894 in words is "twenty million, two hundred twenty thousand, eight hundred ninety-four".