2388521 has 4 divisors (see below), whose sum is σ = 2444112. Its totient is φ = 2332932.

The previous prime is 2388499. The next prime is 2388539. The reversal of 2388521 is 1258832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2388521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2381521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27731 + ... + 27816.

It is an arithmetic number, because the mean of its divisors is an integer number (611028).

2^2388521 is an apocalyptic number.

It is an amenable number.

2388521 is a deficient number, since it is larger than the sum of its proper divisors (55591).

2388521 is an equidigital number, since it uses as much as digits as its factorization.

2388521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55590.

The product of its digits is 3840, while the sum is 29.

The square root of 2388521 is about 1545.4840665630. The cubic root of 2388521 is about 133.6727926607.

The spelling of 2388521 in words is "two million, three hundred eighty-eight thousand, five hundred twenty-one".