220147530 has 64 divisors (see below), whose sum is σ = 552296448. Its totient is φ = 56105280.

The previous prime is 220147493. The next prime is 220147541. The reversal of 220147530 is 35741022.

It is a self number, because there is not a number n which added to its sum of digits gives 220147530.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58815 + ... + 62445.

It is an arithmetic number, because the mean of its divisors is an integer number (8629632).

Almost surely, 2^220147530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220147530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276148224).

220147530 is an abundant number, since it is smaller than the sum of its proper divisors (332148918).

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

220147530 is a wasteful number, since it uses less digits than its factorization.

220147530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3731.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 220147530 is about 14837.3693760046. The cubic root of 220147530 is about 603.8159845409.

Adding to 220147530 its reverse (35741022), we get a palindrome (255888552).

The spelling of 220147530 in words is "two hundred twenty million, one hundred forty-seven thousand, five hundred thirty".