2409138 has 24 divisors (see below), whose sum is σ = 5527548. Its totient is φ = 755712.

The previous prime is 2409137. The next prime is 2409149. The reversal of 2409138 is 8319042.

It can be written as a sum of positive squares in 2 ways, for example, as 2350089 + 59049 = 1533^2 + 243^2 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2409131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3631 + ... + 4242.

2^2409138 is an apocalyptic number.

2409138 is an abundant number, since it is smaller than the sum of its proper divisors (3118410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2409138 is a wasteful number, since it uses less digits than its factorization.

2409138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7898 (or 7895 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2409138 is about 1552.1398132900. The cubic root of 2409138 is about 134.0562992062.

The spelling of 2409138 in words is "two million, four hundred nine thousand, one hundred thirty-eight".