489156520 has 64 divisors (see below), whose sum is σ = 1163808000. Its totient is φ = 184520448.

The previous prime is 489156467. The next prime is 489156523. The reversal of 489156520 is 25651984.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (489156523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180294 + ... + 182986.

It is an arithmetic number, because the mean of its divisors is an integer number (18184500).

Almost surely, 2^489156520 is an apocalyptic number.

489156520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489156520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (581904000).

489156520 is an abundant number, since it is smaller than the sum of its proper divisors (674651480).

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

489156520 is a wasteful number, since it uses less digits than its factorization.

489156520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2962 (or 2958 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 489156520 is about 22116.8831438790. The cubic root of 489156520 is about 787.9208909907.

The spelling of 489156520 in words is "four hundred eighty-nine million, one hundred fifty-six thousand, five hundred twenty".