488857840 has 40 divisors (see below), whose sum is σ = 1196418960. Its totient is φ = 185250816.

The previous prime is 488857829. The next prime is 488857867. The reversal of 488857840 is 48758884.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159289 + ... + 162328.

It is an arithmetic number, because the mean of its divisors is an integer number (29910474).

Almost surely, 2^488857840 is an apocalyptic number.

488857840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

488857840 is an abundant number, since it is smaller than the sum of its proper divisors (707561120).

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

488857840 is a wasteful number, since it uses less digits than its factorization.

488857840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321649 (or 321643 counting only the distinct ones).

The product of its (nonzero) digits is 2293760, while the sum is 52.

The square root of 488857840 is about 22110.1298051368. The cubic root of 488857840 is about 787.7604896214.

The spelling of 488857840 in words is "four hundred eighty-eight million, eight hundred fifty-seven thousand, eight hundred forty".