220894775 has 12 divisors (see below), whose sum is σ = 274312800. Its totient is φ = 176455680.

The previous prime is 220894717. The next prime is 220894781. The reversal of 220894775 is 577498022.

It is not a de Polignac number, because 220894775 - 2⁸ = 220894519 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11831 + ... + 24119.

It is an arithmetic number, because the mean of its divisors is an integer number (22859400).

Almost surely, 2^220894775 is an apocalyptic number.

220894775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

220894775 is a deficient number, since it is larger than the sum of its proper divisors (53418025).

220894775 is a wasteful number, since it uses less digits than its factorization.

220894775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13018 (or 13013 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 220894775 is about 14862.5292262118. The cubic root of 220894775 is about 604.4983889511.

It can be divided in two parts, 2208947 and 75, that added together give a palindrome (2209022).

The spelling of 220894775 in words is "two hundred twenty million, eight hundred ninety-four thousand, seven hundred seventy-five".