1528030404 has 18 divisors (see below), whose sum is σ = 3862521390. Its totient is φ = 509343456.

The previous prime is 1528030381. The next prime is 1528030421. The reversal of 1528030404 is 4040308251.

1528030404 is a `hidden beast` number, since 152 + 80 + 30 + 404 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1528028100 + 2304 = 39090^2 + 48^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21222609 + ... + 21222680.

Almost surely, 2^1528030404 is an apocalyptic number.

It is an amenable number.

1528030404 is an abundant number, since it is smaller than the sum of its proper divisors (2334490986).

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

1528030404 is a wasteful number, since it uses less digits than its factorization.

1528030404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42445299 (or 42445294 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1528030404 is about 39090.0294704417. The cubic root of 1528030404 is about 1151.8006834710.

Adding to 1528030404 its reverse (4040308251), we get a palindrome (5568338655).

The spelling of 1528030404 in words is "one billion, five hundred twenty-eight million, thirty thousand, four hundred four".