123420888 has 64 divisors (see below), whose sum is σ = 349336800. Its totient is φ = 40360320.

The previous prime is 123420887. The next prime is 123420893. The reversal of 123420888 is 888024321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123420887) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6058 + ... + 16838.

Almost surely, 2^123420888 is an apocalyptic number.

123420888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123420888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174668400).

123420888 is an abundant number, since it is smaller than the sum of its proper divisors (225915912).

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

123420888 is a wasteful number, since it uses less digits than its factorization.

123420888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10849 (or 10839 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 123420888 is about 11109.4953980818. The cubic root of 123420888 is about 497.8855884650.

It can be divided in two parts, 1234 and 20888, that added together give a palindrome (22122).

The spelling of 123420888 in words is "one hundred twenty-three million, four hundred twenty thousand, eight hundred eighty-eight".