900909249 has 8 divisors (see below), whose sum is σ = 1201781952. Its totient is φ = 600321360.

The previous prime is 900909239. The next prime is 900909253. The reversal of 900909249 is 942909009.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 900909249 - 2⁸ = 900908993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 900909249.

It is not an unprimeable number, because it can be changed into a prime (900909239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63709 + ... + 76554.

It is an arithmetic number, because the mean of its divisors is an integer number (150222744).

Almost surely, 2^900909249 is an apocalyptic number.

It is an amenable number.

900909249 is a deficient number, since it is larger than the sum of its proper divisors (300872703).

900909249 is a wasteful number, since it uses less digits than its factorization.

900909249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142407.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 900909249 is about 30015.1503244611. The cubic root of 900909249 is about 965.8144123066.

The spelling of 900909249 in words is "nine hundred million, nine hundred nine thousand, two hundred forty-nine".