900030 has 32 divisors (see below), whose sum is σ = 2275200. Its totient is φ = 227232.

The previous prime is 900019. The next prime is 900037. The reversal of 900030 is 30009.

It is a junction number, because it is equal to n+sod(n) for n = 899979 and 900015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900037) by changing a digit.

900030 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220 + ... + 1359.

It is an arithmetic number, because the mean of its divisors is an integer number (71100).

2⁹⁰⁰⁰³⁰ is an apocalyptic number.

900030 is an abundant number, since it is smaller than the sum of its proper divisors (1375170).

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

900030 is a wasteful number, since it uses less digits than its factorization.

900030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608.

The product of its (nonzero) digits is 27, while the sum is 12.

The square root of 900030 is about 948.6991093071. The cubic root of 900030 is about 96.5500112146.

Adding to 900030 its reverse (30009), we get a palindrome (930039).

The spelling of 900030 in words is "nine hundred thousand, thirty".