123642882 has 96 divisors (see below), whose sum is σ = 306432000. Its totient is φ = 36923040.

The previous prime is 123642811. The next prime is 123642889. The reversal of 123642882 is 288246321.

123642882 is a `hidden beast` number, since 1 + 2 + 3 + 642 + 8 + 8 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (123642889) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 829744 + ... + 829892.

It is an arithmetic number, because the mean of its divisors is an integer number (3192000).

Almost surely, 2^123642882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123642882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153216000).

123642882 is an abundant number, since it is smaller than the sum of its proper divisors (182789118).

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

123642882 is a wasteful number, since it uses less digits than its factorization.

123642882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 292 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 123642882 is about 11119.4820922559. The cubic root of 123642882 is about 498.1839210340.

The spelling of 123642882 in words is "one hundred twenty-three million, six hundred forty-two thousand, eight hundred eighty-two".