123302240 has 24 divisors (see below), whose sum is σ = 291301920. Its totient is φ = 49320832.

The previous prime is 123302219. The next prime is 123302243. The reversal of 123302240 is 42203321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123302243) 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 3 ways as a sum of consecutive naturals, for example, 385160 + ... + 385479.

It is an arithmetic number, because the mean of its divisors is an integer number (12137580).

Almost surely, 2^123302240 is an apocalyptic number.

123302240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123302240 is an abundant number, since it is smaller than the sum of its proper divisors (167999680).

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

123302240 is an equidigital number, since it uses as much as digits as its factorization.

123302240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770654 (or 770646 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 123302240 is about 11104.1541776040. The cubic root of 123302240 is about 497.7259934674.

Adding to 123302240 its reverse (42203321), we get a palindrome (165505561).

The spelling of 123302240 in words is "one hundred twenty-three million, three hundred two thousand, two hundred forty".