485711980 has 48 divisors (see below), whose sum is σ = 1109838240. Its totient is φ = 177481728.

The previous prime is 485711969. The next prime is 485711983. The reversal of 485711980 is 89117584.

It is a happy number.

It is a super-2 number, since 2×485711980² = 471832255031040800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (485711983) 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, 15591 + ... + 34849.

It is an arithmetic number, because the mean of its divisors is an integer number (23121630).

Almost surely, 2^485711980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 485711980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554919120).

485711980 is an abundant number, since it is smaller than the sum of its proper divisors (624126260).

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

485711980 is a wasteful number, since it uses less digits than its factorization.

485711980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19378 (or 19376 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 43.

The square root of 485711980 is about 22038.8742906710. The cubic root of 485711980 is about 786.0670735925.

The spelling of 485711980 in words is "four hundred eighty-five million, seven hundred eleven thousand, nine hundred eighty".