200090409 has 8 divisors (see below), whose sum is σ = 278386752. Its totient is φ = 127593840.

The previous prime is 200090389. The next prime is 200090419. The reversal of 200090409 is 904090002.

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

It is a de Polignac number, because none of the positive numbers 2^k-200090409 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (200090419) 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, 1449862 + ... + 1449999.

It is an arithmetic number, because the mean of its divisors is an integer number (34798344).

Almost surely, 2^200090409 is an apocalyptic number.

It is an amenable number.

200090409 is a deficient number, since it is larger than the sum of its proper divisors (78296343).

200090409 is a wasteful number, since it uses less digits than its factorization.

200090409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2899887.

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

The square root of 200090409 is about 14145.3317034278. The cubic root of 200090409 is about 584.8916535412.

The spelling of 200090409 in words is "two hundred million, ninety thousand, four hundred nine".