2009601 has 24 divisors (see below), whose sum is σ = 3234816. Its totient is φ = 1191840.

The previous prime is 2009593. The next prime is 2009603. The reversal of 2009601 is 1069002.

It is not a de Polignac number, because 2009601 - 2³ = 2009593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2009603) 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, 5056 + ... + 5438.

It is an arithmetic number, because the mean of its divisors is an integer number (134784).

2^2009601 is an apocalyptic number.

It is an amenable number.

2009601 is a deficient number, since it is larger than the sum of its proper divisors (1225215).

2009601 is a wasteful number, since it uses less digits than its factorization.

2009601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 2009601 is about 1417.6039644414. The cubic root of 2009601 is about 126.1933916068.

It can be divided in two parts, 200 and 9601, that added together give a square (9801 = 99²).

The spelling of 2009601 in words is "two million, nine thousand, six hundred one".