220147760 has 40 divisors (see below), whose sum is σ = 584965536. Its totient is φ = 75479040.

The previous prime is 220147757. The next prime is 220147777. The reversal of 220147760 is 67741022.

It is a tau number, because it is divible by the number of its divisors (40).

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, 196001 + ... + 197120.

Almost surely, 2^220147760 is an apocalyptic number.

220147760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220147760 is an abundant number, since it is smaller than the sum of its proper divisors (364817776).

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

220147760 is a wasteful number, since it uses less digits than its factorization.

220147760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393141 (or 393135 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 220147760 is about 14837.3771267027. The cubic root of 220147760 is about 603.8161948206.

Adding to 220147760 its reverse (67741022), we get a palindrome (287888782).

The spelling of 220147760 in words is "two hundred twenty million, one hundred forty-seven thousand, seven hundred sixty".