2998642 has 4 divisors (see below), whose sum is σ = 4497966. Its totient is φ = 1499320.

The previous prime is 2998631. The next prime is 2998649. The reversal of 2998642 is 2468992.

2998642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2954961 + 43681 = 1719^2 + 209^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2998595 and 2998604.

It is not an unprimeable number, because it can be changed into a prime (2998649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749659 + ... + 749662.

2^2998642 is an apocalyptic number.

2998642 is a deficient number, since it is larger than the sum of its proper divisors (1499324).

2998642 is a wasteful number, since it uses less digits than its factorization.

2998642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499323.

The product of its digits is 62208, while the sum is 40.

The square root of 2998642 is about 1731.6587423624. The cubic root of 2998642 is about 144.2031918028.

The spelling of 2998642 in words is "two million, nine hundred ninety-eight thousand, six hundred forty-two".