220648698 has 40 divisors (see below), whose sum is σ = 497337588. Its totient is φ = 73115136.

The previous prime is 220648697. The next prime is 220648709. The reversal of 220648698 is 896846022.

It can be written as a sum of positive squares in 2 ways, for example, as 219721329 + 927369 = 14823^2 + 963^2 .

It is not an unprimeable number, because it can be changed into a prime (220648693) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24090 + ... + 31962.

Almost surely, 2^220648698 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220648698, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248668794).

220648698 is an abundant number, since it is smaller than the sum of its proper divisors (276688890).

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

220648698 is a wasteful number, since it uses less digits than its factorization.

220648698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8060 (or 8051 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 220648698 is about 14854.2484831781. The cubic root of 220648698 is about 604.2738349429.

The spelling of 220648698 in words is "two hundred twenty million, six hundred forty-eight thousand, six hundred ninety-eight".