489257445 has 16 divisors (see below), whose sum is σ = 783132480. Its totient is φ = 260830464.

The previous prime is 489257437. The next prime is 489257453. The reversal of 489257445 is 544752984.

It is an interprime number because it is at equal distance from previous prime (489257437) and next prime (489257453).

It is not a de Polignac number, because 489257445 - 2³ = 489257437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 489257394 and 489257403.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 43186 + ... + 53324.

It is an arithmetic number, because the mean of its divisors is an integer number (48945780).

Almost surely, 2^489257445 is an apocalyptic number.

It is an amenable number.

489257445 is a deficient number, since it is larger than the sum of its proper divisors (293875035).

489257445 is a wasteful number, since it uses less digits than its factorization.

489257445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13364.

The product of its digits is 1612800, while the sum is 48.

The square root of 489257445 is about 22119.1646542088. The cubic root of 489257445 is about 787.9750764060.

The spelling of 489257445 in words is "four hundred eighty-nine million, two hundred fifty-seven thousand, four hundred forty-five".