2989456 has 10 divisors (see below), whose sum is σ = 5792102. Its totient is φ = 1494720.

The previous prime is 2989451. The next prime is 2989487. The reversal of 2989456 is 6549892.

2989456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1587600 + 1401856 = 1260^2 + 1184^2 .

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (2989451) 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, 93405 + ... + 93436.

2^2989456 is an apocalyptic number.

It is an amenable number.

2989456 is a deficient number, since it is larger than the sum of its proper divisors (2802646).

2989456 is a wasteful number, since it uses less digits than its factorization.

2989456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186849 (or 186843 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 2989456 is about 1729.0043377621. The cubic root of 2989456 is about 144.0557911388.

The spelling of 2989456 in words is "two million, nine hundred eighty-nine thousand, four hundred fifty-six".