2642489 has 4 divisors (see below), whose sum is σ = 2663424. Its totient is φ = 2621556.

The previous prime is 2642483. The next prime is 2642513. The reversal of 2642489 is 9842462.

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 not a de Polignac number, because 2642489 - 2⁴ = 2642473 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 6⁵ + 4⁴ + 2¹⁹ + 4⁶ + 8⁷ + 9³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2642483) 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, 10277 + ... + 10530.

It is an arithmetic number, because the mean of its divisors is an integer number (665856).

2^2642489 is an apocalyptic number.

It is an amenable number.

2642489 is a deficient number, since it is larger than the sum of its proper divisors (20935).

2642489 is a wasteful number, since it uses less digits than its factorization.

2642489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20934.

The product of its digits is 27648, while the sum is 35.

The square root of 2642489 is about 1625.5734372830. The cubic root of 2642489 is about 138.2518854104.

The spelling of 2642489 in words is "two million, six hundred forty-two thousand, four hundred eighty-nine".