2009245 has 24 divisors (see below), whose sum is σ = 2872800. Its totient is φ = 1344672.

The previous prime is 2009243. The next prime is 2009251. The reversal of 2009245 is 5429002.

It is a happy number.

It is not a de Polignac number, because 2009245 - 2¹ = 2009243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009243) 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, 14386 + ... + 14524.

It is an arithmetic number, because the mean of its divisors is an integer number (119700).

2^2009245 is an apocalyptic number.

It is an amenable number.

2009245 is a deficient number, since it is larger than the sum of its proper divisors (863555).

2009245 is a wasteful number, since it uses less digits than its factorization.

2009245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2009245 is about 1417.4783948971. The cubic root of 2009245 is about 126.1859394641.

The spelling of 2009245 in words is "two million, nine thousand, two hundred forty-five".