220634454 has 16 divisors (see below), whose sum is σ = 445819248. Its totient is φ = 72786432.

The previous prime is 220634443. The next prime is 220634459. The reversal of 220634454 is 454436022.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220634459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188967 + ... + 190130.

It is an arithmetic number, because the mean of its divisors is an integer number (27863703).

Almost surely, 2^220634454 is an apocalyptic number.

220634454 is an abundant number, since it is smaller than the sum of its proper divisors (225184794).

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

220634454 is a wasteful number, since it uses less digits than its factorization.

220634454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379199.

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 220634454 is about 14853.7690166503. The cubic root of 220634454 is about 604.2608316760.

The spelling of 220634454 in words is "two hundred twenty million, six hundred thirty-four thousand, four hundred fifty-four".