220734518 has 8 divisors (see below), whose sum is σ = 333294960. Its totient is φ = 109636200.

The previous prime is 220734499. The next prime is 220734589. The reversal of 220734518 is 815437022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 365153 + ... + 365756.

It is an arithmetic number, because the mean of its divisors is an integer number (41661870).

Almost surely, 2^220734518 is an apocalyptic number.

220734518 is a deficient number, since it is larger than the sum of its proper divisors (112560442).

220734518 is a wasteful number, since it uses less digits than its factorization.

220734518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731062.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 220734518 is about 14857.1369381856. The cubic root of 220734518 is about 604.3521676939.

The spelling of 220734518 in words is "two hundred twenty million, seven hundred thirty-four thousand, five hundred eighteen".