123878488 has 16 divisors (see below), whose sum is σ = 240282000. Its totient is φ = 59803296.

The previous prime is 123878407. The next prime is 123878497. The reversal of 123878488 is 884878321.

It is a super-2 number, since 2×123878488² = 30691759578332288, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 266748 + ... + 267211.

It is an arithmetic number, because the mean of its divisors is an integer number (15017625).

Almost surely, 2^123878488 is an apocalyptic number.

It is an amenable number.

123878488 is a deficient number, since it is larger than the sum of its proper divisors (116403512).

123878488 is a wasteful number, since it uses less digits than its factorization.

123878488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533994 (or 533990 counting only the distinct ones).

The product of its digits is 688128, while the sum is 49.

The square root of 123878488 is about 11130.0713384955. The cubic root of 123878488 is about 498.5001561018.

The spelling of 123878488 in words is "one hundred twenty-three million, eight hundred seventy-eight thousand, four hundred eighty-eight".