220506340 has 24 divisors (see below), whose sum is σ = 463401792. Its totient is φ = 88138080.

The previous prime is 220506329. The next prime is 220506353. The reversal of 220506340 is 43605022.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31785 + ... + 38095.

It is an arithmetic number, because the mean of its divisors is an integer number (19308408).

Almost surely, 2^220506340 is an apocalyptic number.

220506340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220506340 is an abundant number, since it is smaller than the sum of its proper divisors (242895452).

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

220506340 is a wasteful number, since it uses less digits than its factorization.

220506340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8067 (or 8065 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 220506340 is about 14849.4558822874. The cubic root of 220506340 is about 604.1438519698.

The spelling of 220506340 in words is "two hundred twenty million, five hundred six thousand, three hundred forty".