2388609 has 20 divisors (see below), whose sum is σ = 3669204. Its totient is φ = 1547424.

The previous prime is 2388593. The next prime is 2388613. The reversal of 2388609 is 9068832.

It can be written as a sum of positive squares in 2 ways, for example, as 1703025 + 685584 = 1305^2 + 828^2 .

It is not a de Polignac number, because 2388609 - 2⁴ = 2388593 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2388629) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2599 + ... + 3395.

2^2388609 is an apocalyptic number.

It is an amenable number.

2388609 is a deficient number, since it is larger than the sum of its proper divisors (1280595).

2388609 is an equidigital number, since it uses as much as digits as its factorization.

2388609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2388609 is about 1545.5125363451. The cubic root of 2388609 is about 133.6744342709.

The spelling of 2388609 in words is "two million, three hundred eighty-eight thousand, six hundred nine".