2220528424 has 8 divisors (see below), whose sum is σ = 4163490810. Its totient is φ = 1110264208.

The previous prime is 2220528413. The next prime is 2220528467. The reversal of 2220528424 is 4248250222.

It can be written as a sum of positive squares in only one way, i.e., 2220105924 + 422500 = 47118^2 + 650^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138783019 + ... + 138783034.

Almost surely, 2^2220528424 is an apocalyptic number.

It is an amenable number.

2220528424 is a deficient number, since it is larger than the sum of its proper divisors (1942962386).

2220528424 is a wasteful number, since it uses less digits than its factorization.

2220528424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277566059 (or 277566055 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 31.

The square root of 2220528424 is about 47122.4832113080. The cubic root of 2220528424 is about 1304.6242463246.

Adding to 2220528424 its reverse (4248250222), we get a palindrome (6468778646).

The spelling of 2220528424 in words is "two billion, two hundred twenty million, five hundred twenty-eight thousand, four hundred twenty-four".