2201409 has 24 divisors (see below), whose sum is σ = 3686592. Its totient is φ = 1239840.

The previous prime is 2201401. The next prime is 2201417. The reversal of 2201409 is 9041022.

It is an interprime number because it is at equal distance from previous prime (2201401) and next prime (2201417).

It is not a de Polignac number, because 2201409 - 2³ = 2201401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2201391 and 2201400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5019 + ... + 5439.

It is an arithmetic number, because the mean of its divisors is an integer number (153608).

2^2201409 is an apocalyptic number.

It is an amenable number.

2201409 is a deficient number, since it is larger than the sum of its proper divisors (1485183).

2201409 is a wasteful number, since it uses less digits than its factorization.

2201409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2201409 is about 1483.7145951968. The cubic root of 2201409 is about 130.0869044165.

The spelling of 2201409 in words is "two million, two hundred one thousand, four hundred nine".