123340816 has 40 divisors (see below), whose sum is σ = 248595200. Its totient is φ = 59218560.

The previous prime is 123340807. The next prime is 123340817. The reversal of 123340816 is 618043321.

It is not an unprimeable number, because it can be changed into a prime (123340817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68050 + ... + 69838.

It is an arithmetic number, because the mean of its divisors is an integer number (6214880).

Almost surely, 2^123340816 is an apocalyptic number.

123340816 is a gapful number since it is divisible by the number (16) 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 123340816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124297600).

123340816 is an abundant number, since it is smaller than the sum of its proper divisors (125254384).

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

123340816 is a wasteful number, since it uses less digits than its factorization.

123340816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967 (or 1961 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 123340816 is about 11105.8910493485. The cubic root of 123340816 is about 497.7778937842. Note that the first 3 decimals are identical.

The spelling of 123340816 in words is "one hundred twenty-three million, three hundred forty thousand, eight hundred sixteen".