1604228224 has 16 divisors (see below), whose sum is σ = 3195923670. Its totient is φ = 802114048.

The previous prime is 1604228167. The next prime is 1604228257. The reversal of 1604228224 is 4228224061.

It can be written as a sum of positive squares in only one way, i.e., 1586588224 + 17640000 = 39832^2 + 4200^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6266389 + ... + 6266644.

Almost surely, 2^1604228224 is an apocalyptic number.

It is an amenable number.

1604228224 is a deficient number, since it is larger than the sum of its proper divisors (1591695446).

1604228224 is an equidigital number, since it uses as much as digits as its factorization.

1604228224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12533047 (or 12533035 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 1604228224 is about 40052.8179283306. The cubic root of 1604228224 is about 1170.6364725572.

The spelling of 1604228224 in words is "one billion, six hundred four million, two hundred twenty-eight thousand, two hundred twenty-four".