489287970 has 144 divisors (see below), whose sum is σ = 1366485120. Its totient is φ = 121391424.

The previous prime is 489287969. The next prime is 489287977. The reversal of 489287970 is 79782984.

489287970 is a `hidden beast` number, since 489 + 28 + 79 + 70 = 666.

It is not an unprimeable number, because it can be changed into a prime (489287977) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2047111 + ... + 2047349.

It is an arithmetic number, because the mean of its divisors is an integer number (9489480).

Almost surely, 2^489287970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489287970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683242560).

489287970 is an abundant number, since it is smaller than the sum of its proper divisors (877197150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489287970 is a wasteful number, since it uses less digits than its factorization.

489287970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The square root of 489287970 is about 22119.8546559420. The cubic root of 489287970 is about 787.9914634426.

The spelling of 489287970 in words is "four hundred eighty-nine million, two hundred eighty-seven thousand, nine hundred seventy".