220007620 has 96 divisors (see below), whose sum is σ = 550158336. Its totient is φ = 72316800.

The previous prime is 220007617. The next prime is 220007633. The reversal of 220007620 is 26700022.

It is a happy number.

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, 707265 + ... + 707575.

It is an arithmetic number, because the mean of its divisors is an integer number (5730816).

Almost surely, 2^220007620 is an apocalyptic number.

220007620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220007620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275079168).

220007620 is an abundant number, since it is smaller than the sum of its proper divisors (330150716).

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

220007620 is a wasteful number, since it uses less digits than its factorization.

220007620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 220007620 is about 14832.6538421147. The cubic root of 220007620 is about 603.6880433717.

Adding to 220007620 its reverse (26700022), we get a palindrome (246707642).

The spelling of 220007620 in words is "two hundred twenty million, seven thousand, six hundred twenty".