2442689 has 4 divisors (see below), whose sum is σ = 2446080. Its totient is φ = 2439300.

The previous prime is 2442683. The next prime is 2442719. The reversal of 2442689 is 9862442.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9862442 = 2 ⋅4931221.

It is a cyclic number.

It is not a de Polignac number, because 2442689 - 2⁴ = 2442673 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁵ + 4² + 4⁸ + 2²¹ + 6⁷ + 8 + 9 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2442683) 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, 137 + ... + 2214.

It is an arithmetic number, because the mean of its divisors is an integer number (611520).

2^2442689 is an apocalyptic number.

It is an amenable number.

2442689 is a deficient number, since it is larger than the sum of its proper divisors (3391).

2442689 is a wasteful number, since it uses less digits than its factorization.

2442689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390.

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

The square root of 2442689 is about 1562.9104260961. The cubic root of 2442689 is about 134.6757467273.

The spelling of 2442689 in words is "two million, four hundred forty-two thousand, six hundred eighty-nine".