488626389 has 12 divisors (see below), whose sum is σ = 709378956. Its totient is φ = 324096192.

The previous prime is 488626379. The next prime is 488626417. The reversal of 488626389 is 983626884.

488626389 is a `hidden beast` number, since 4 + 8 + 8 + 626 + 3 + 8 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 330621489 + 158004900 = 18183^2 + 12570^2 .

It is not a de Polignac number, because 488626389 - 2⁵ = 488626357 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488626319) 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, 136024 + ... + 139569.

It is an arithmetic number, because the mean of its divisors is an integer number (59114913).

Almost surely, 2^488626389 is an apocalyptic number.

It is an amenable number.

488626389 is a deficient number, since it is larger than the sum of its proper divisors (220752567).

488626389 is a wasteful number, since it uses less digits than its factorization.

488626389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275796 (or 275793 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The square root of 488626389 is about 22104.8951365981. The cubic root of 488626389 is about 787.6361475869.

The spelling of 488626389 in words is "four hundred eighty-eight million, six hundred twenty-six thousand, three hundred eighty-nine".