900249 has 16 divisors (see below), whose sum is σ = 1385472. Its totient is φ = 509328.

The previous prime is 900241. The next prime is 900253. The reversal of 900249 is 942009.

It is not a de Polignac number, because 900249 - 2³ = 900241 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (900241) 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, 3292 + ... + 3554.

It is an arithmetic number, because the mean of its divisors is an integer number (86592).

2⁹⁰⁰²⁴⁹ is an apocalyptic number.

It is an amenable number.

900249 is a deficient number, since it is larger than the sum of its proper divisors (485223).

900249 is a wasteful number, since it uses less digits than its factorization.

900249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 900249 is about 948.8145234976. The cubic root of 900249 is about 96.5578415972.

The spelling of 900249 in words is "nine hundred thousand, two hundred forty-nine".