16220048 has 40 divisors (see below), whose sum is σ = 35023800. Its totient is φ = 7225344.

The previous prime is 16219981. The next prime is 16220069. The reversal of 16220048 is 84002261.

It can be written as a sum of positive squares in 4 ways, for example, as 123904 + 16096144 = 352^2 + 4012^2 .

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, 4688 + ... + 7376.

It is an arithmetic number, because the mean of its divisors is an integer number (875595).

Almost surely, 2^16220048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16220048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17511900).

16220048 is an abundant number, since it is smaller than the sum of its proper divisors (18803752).

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

16220048 is a wasteful number, since it uses less digits than its factorization.

16220048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739 (or 2733 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 16220048 is about 4027.4120722866. The cubic root of 16220048 is about 253.1341339589.

The spelling of 16220048 in words is "sixteen million, two hundred twenty thousand, forty-eight".