485315988 has 12 divisors (see below), whose sum is σ = 1132404000. Its totient is φ = 161771992.

The previous prime is 485315981. The next prime is 485315989. The reversal of 485315988 is 889513584.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×485315988² = 471063216416832288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 485315988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485315981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20221488 + ... + 20221511.

It is an arithmetic number, because the mean of its divisors is an integer number (94367000).

Almost surely, 2^485315988 is an apocalyptic number.

It is an amenable number.

485315988 is an abundant number, since it is smaller than the sum of its proper divisors (647088012).

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

485315988 is a wasteful number, since it uses less digits than its factorization.

485315988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40443006 (or 40443004 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 51.

The square root of 485315988 is about 22029.8885153784. Note that the first 3 decimals coincide. The cubic root of 485315988 is about 785.8533935267.

The spelling of 485315988 in words is "four hundred eighty-five million, three hundred fifteen thousand, nine hundred eighty-eight".