220446475 has 12 divisors (see below), whose sum is σ = 273538296. Its totient is φ = 176238080.

The previous prime is 220446449. The next prime is 220446491. The reversal of 220446475 is 574644022.

It is a de Polignac number, because none of the positive numbers 2^k-220446475 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220446475.

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, 67224 + ... + 70426.

It is an arithmetic number, because the mean of its divisors is an integer number (22794858).

Almost surely, 2^220446475 is an apocalyptic number.

220446475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

220446475 is a deficient number, since it is larger than the sum of its proper divisors (53091821).

220446475 is a wasteful number, since it uses less digits than its factorization.

220446475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5966 (or 5961 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 34.

The square root of 220446475 is about 14847.4400150329. The cubic root of 220446475 is about 604.0891742597.

The spelling of 220446475 in words is "two hundred twenty million, four hundred forty-six thousand, four hundred seventy-five".