122805738 has 48 divisors (see below), whose sum is σ = 298130976. Its totient is φ = 36205920.

The previous prime is 122805713. The next prime is 122805757. The reversal of 122805738 is 837508221.

122805738 is a `hidden beast` number, since 1 + 2 + 2 + 80 + 573 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1056 + ... + 15707.

It is an arithmetic number, because the mean of its divisors is an integer number (6211062).

Almost surely, 2^122805738 is an apocalyptic number.

122805738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122805738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149065488).

122805738 is an abundant number, since it is smaller than the sum of its proper divisors (175325238).

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

122805738 is a wasteful number, since it uses less digits than its factorization.

122805738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16819 (or 16816 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 122805738 is about 11081.7750383231. The cubic root of 122805738 is about 497.0570291644.

The spelling of 122805738 in words is "one hundred twenty-two million, eight hundred five thousand, seven hundred thirty-eight".