2538605 has 8 divisors (see below), whose sum is σ = 3089664. Its totient is φ = 2002000.

The previous prime is 2538589. The next prime is 2538617. The reversal of 2538605 is 5068352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2538605 - 2⁴ = 2538589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3221 + ... + 3930.

It is an arithmetic number, because the mean of its divisors is an integer number (386208).

2^2538605 is an apocalyptic number.

It is an amenable number.

2538605 is a deficient number, since it is larger than the sum of its proper divisors (551059).

2538605 is an equidigital number, since it uses as much as digits as its factorization.

2538605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7227.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2538605 is about 1593.3000345196. The cubic root of 2538605 is about 136.4159160485.

The spelling of 2538605 in words is "two million, five hundred thirty-eight thousand, six hundred five".