220340454 has 32 divisors (see below), whose sum is σ = 465077760. Its totient is φ = 69400800.

The previous prime is 220340453. The next prime is 220340509. The reversal of 220340454 is 454043022.

It is a super-2 number, since 2×220340454² = 97099831337852232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220340453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45699 + ... + 50289.

It is an arithmetic number, because the mean of its divisors is an integer number (14533680).

Almost surely, 2^220340454 is an apocalyptic number.

220340454 is an abundant number, since it is smaller than the sum of its proper divisors (244737306).

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

220340454 is a wasteful number, since it uses less digits than its factorization.

220340454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 220340454 is about 14843.8692395211. The cubic root of 220340454 is about 603.9923156632.

Adding to 220340454 its reverse (454043022), we get a palindrome (674383476).

The spelling of 220340454 in words is "two hundred twenty million, three hundred forty thousand, four hundred fifty-four".