488165881 has 12 divisors (see below), whose sum is σ = 578583972. Its totient is φ = 410530848.

The previous prime is 488165851. The next prime is 488165891. The reversal of 488165881 is 188561884.

It can be written as a sum of positive squares in 2 ways, for example, as 437186281 + 50979600 = 20909^2 + 7140^2 .

It is not a de Polignac number, because 488165881 - 2⁵ = 488165849 is a prime.

It is a super-2 number, since 2×488165881² = 476611854745012322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (488165831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91390 + ... + 96583.

It is an arithmetic number, because the mean of its divisors is an integer number (48215331).

Almost surely, 2^488165881 is an apocalyptic number.

It is an amenable number.

488165881 is a deficient number, since it is larger than the sum of its proper divisors (90418091).

488165881 is a wasteful number, since it uses less digits than its factorization.

488165881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188040 (or 188033 counting only the distinct ones).

The product of its digits is 491520, while the sum is 49.

The square root of 488165881 is about 22094.4762553902. The cubic root of 488165881 is about 787.3886328110.

The spelling of 488165881 in words is "four hundred eighty-eight million, one hundred sixty-five thousand, eight hundred eighty-one".