900033520 has 20 divisors (see below), whose sum is σ = 2092578120. Its totient is φ = 360013376.

The previous prime is 900033469. The next prime is 900033527. The reversal of 900033520 is 25330009.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 900033491 and 900033500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900033527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5625130 + ... + 5625289.

It is an arithmetic number, because the mean of its divisors is an integer number (104628906).

Almost surely, 2^900033520 is an apocalyptic number.

It is an amenable number.

900033520 is an abundant number, since it is smaller than the sum of its proper divisors (1192544600).

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

900033520 is a wasteful number, since it uses less digits than its factorization.

900033520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11250432 (or 11250426 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 900033520 is about 30000.5586614650. The cubic root of 900033520 is about 965.5013708287.

Adding to 900033520 its reverse (25330009), we get a palindrome (925363529).

The spelling of 900033520 in words is "nine hundred million, thirty-three thousand, five hundred twenty".