220606146 has 64 divisors (see below), whose sum is σ = 501258240. Its totient is φ = 71902080.

The previous prime is 220606129. The next prime is 220606187. The reversal of 220606146 is 641606022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 752776 + ... + 753068.

It is an arithmetic number, because the mean of its divisors is an integer number (7832160).

Almost surely, 2^220606146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220606146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250629120).

220606146 is an abundant number, since it is smaller than the sum of its proper divisors (280652094).

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

220606146 is a wasteful number, since it uses less digits than its factorization.

220606146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 220606146 is about 14852.8160966195. The cubic root of 220606146 is about 604.2349878018.

The spelling of 220606146 in words is "two hundred twenty million, six hundred six thousand, one hundred forty-six".