902409 has 8 divisors (see below), whose sum is σ = 1209312. Its totient is φ = 598560.

The previous prime is 902401. The next prime is 902413. The reversal of 902409 is 904209.

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

It is not a de Polignac number, because 902409 - 2³ = 902401 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (902401) 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, 54 + ... + 1344.

It is an arithmetic number, because the mean of its divisors is an integer number (151164).

2⁹⁰²⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

902409 is a deficient number, since it is larger than the sum of its proper divisors (306903).

902409 is a wasteful number, since it uses less digits than its factorization.

902409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527.

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

The square root of 902409 is about 949.9521040558. The cubic root of 902409 is about 96.6350048243.

The spelling of 902409 in words is "nine hundred two thousand, four hundred nine".