900388 has 12 divisors (see below), whose sum is σ = 1668492. Its totient is φ = 423680.

The previous prime is 900349. The next prime is 900397. The reversal of 900388 is 883009.

It can be written as a sum of positive squares in 2 ways, for example, as 831744 + 68644 = 912^2 + 262^2 .

It is a congruent number.

It is an unprimeable number.

900388 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6553 + ... + 6688.

It is an arithmetic number, because the mean of its divisors is an integer number (139041).

2⁹⁰⁰³⁸⁸ is an apocalyptic number.

It is an amenable number.

900388 is a deficient number, since it is larger than the sum of its proper divisors (768104).

900388 is a wasteful number, since it uses less digits than its factorization.

900388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13262 (or 13260 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 900388 is about 948.8877699707. The cubic root of 900388 is about 96.5628109073.

The spelling of 900388 in words is "nine hundred thousand, three hundred eighty-eight".