900345 has 16 divisors (see below), whose sum is σ = 1452672. Its totient is φ = 476160.

The previous prime is 900331. The next prime is 900349. The reversal of 900345 is 543009.

It is not a de Polignac number, because 900345 - 2⁴ = 900329 is a prime.

It is a super-2 number, since 2×900345² = 1621242238050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (900349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2740 + ... + 3050.

It is an arithmetic number, because the mean of its divisors is an integer number (90792).

2⁹⁰⁰³⁴⁵ is an apocalyptic number.

It is an amenable number.

900345 is a deficient number, since it is larger than the sum of its proper divisors (552327).

900345 is a wasteful number, since it uses less digits than its factorization.

900345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 900345 is about 948.8651115938. The cubic root of 900345 is about 96.5612736933.

The spelling of 900345 in words is "nine hundred thousand, three hundred forty-five".