2489045421 has 8 divisors (see below), whose sum is σ = 3319352320. Its totient is φ = 1659051072.

The previous prime is 2489045407. The next prime is 2489045431. The reversal of 2489045421 is 1245409842.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2489045421 - 2⁶ = 2489045357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2489045421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2489045401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58876 + ... + 91893.

It is an arithmetic number, because the mean of its divisors is an integer number (414919040).

Almost surely, 2^2489045421 is an apocalyptic number.

It is an amenable number.

2489045421 is a deficient number, since it is larger than the sum of its proper divisors (830306899).

2489045421 is a wasteful number, since it uses less digits than its factorization.

2489045421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156275.

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 2489045421 is about 49890.3339435607. Note that the first 3 decimals coincide. The cubic root of 2489045421 is about 1355.2235523006.

The spelling of 2489045421 in words is "two billion, four hundred eighty-nine million, forty-five thousand, four hundred twenty-one".