2509238 has 4 divisors (see below), whose sum is σ = 3763860. Its totient is φ = 1254618.

The previous prime is 2509237. The next prime is 2509253. The reversal of 2509238 is 8329052.

2509238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 8.

It is a zygodrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 2509238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2509237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627308 + ... + 627311.

It is an arithmetic number, because the mean of its divisors is an integer number (940965).

2^2509238 is an apocalyptic number.

2509238 is a deficient number, since it is larger than the sum of its proper divisors (1254622).

2509238 is a wasteful number, since it uses less digits than its factorization.

2509238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254621.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2509238 is about 1584.0574484532. The cubic root of 2509238 is about 135.8878472731.

The spelling of 2509238 in words is "two million, five hundred nine thousand, two hundred thirty-eight".