220672648 has 32 divisors (see below), whose sum is σ = 500688000. Its totient is φ = 89010432.

The previous prime is 220672643. The next prime is 220672651. The reversal of 220672648 is 846276022.

It is not an unprimeable number, because it can be changed into a prime (220672643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114948 + ... + 116851.

It is an arithmetic number, because the mean of its divisors is an integer number (15646500).

Almost surely, 2^220672648 is an apocalyptic number.

220672648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

220672648 is an abundant number, since it is smaller than the sum of its proper divisors (280015352).

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

220672648 is a wasteful number, since it uses less digits than its factorization.

220672648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231829 (or 231825 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 220672648 is about 14855.0546279709. The cubic root of 220672648 is about 604.2956975007.

The spelling of 220672648 in words is "two hundred twenty million, six hundred seventy-two thousand, six hundred forty-eight".