4251489 has 8 divisors (see below), whose sum is σ = 6184032. Its totient is φ = 2576640.

The previous prime is 4251463. The next prime is 4251491. The reversal of 4251489 is 9841524.

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

It is not a de Polignac number, because 4251489 - 2⁷ = 4251361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 128833 = 4251489 / (4 + 2 + 5 + 1 + 4 + 8 + 9).

It is not an unprimeable number, because it can be changed into a prime (4251419) 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 in 7 ways as a sum of consecutive naturals, for example, 64384 + ... + 64449.

It is an arithmetic number, because the mean of its divisors is an integer number (773004).

Almost surely, 2^4251489 is an apocalyptic number.

It is an amenable number.

4251489 is a deficient number, since it is larger than the sum of its proper divisors (1932543).

4251489 is a wasteful number, since it uses less digits than its factorization.

4251489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128847.

The product of its digits is 11520, while the sum is 33.

The square root of 4251489 is about 2061.9139167288. The cubic root of 4251489 is about 161.9995046472. Note that the first 3 decimals are identical.

The spelling of 4251489 in words is "four million, two hundred fifty-one thousand, four hundred eighty-nine".