220454450 has 24 divisors (see below), whose sum is σ = 410481540. Its totient is φ = 88088000.

The previous prime is 220454449. The next prime is 220454459. The reversal of 220454450 is 54454022.

It can be written as a sum of positive squares in 6 ways, for example, as 65626201 + 154828249 = 8101^2 + 12443^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220454459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63356 + ... + 66744.

Almost surely, 2^220454450 is an apocalyptic number.

220454450 is a deficient number, since it is larger than the sum of its proper divisors (190027090).

220454450 is a wasteful number, since it uses less digits than its factorization.

220454450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4702 (or 4697 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 220454450 is about 14847.7085774203. The cubic root of 220454450 is about 604.0964587991.

The spelling of 220454450 in words is "two hundred twenty million, four hundred fifty-four thousand, four hundred fifty".