121844838 has 16 divisors (see below), whose sum is σ = 244083456. Its totient is φ = 40549320.

The previous prime is 121844837. The next prime is 121844839. The reversal of 121844838 is 838448121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121844837) and next prime (121844839).

It is a junction number, because it is equal to n+sod(n) for n = 121844796 and 121844805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121844837) 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 7 ways as a sum of consecutive naturals, for example, 12306 + ... + 19877.

It is an arithmetic number, because the mean of its divisors is an integer number (15255216).

Almost surely, 2^121844838 is an apocalyptic number.

121844838 is an abundant number, since it is smaller than the sum of its proper divisors (122238618).

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

121844838 is a wasteful number, since it uses less digits than its factorization.

121844838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32819.

The product of its digits is 49152, while the sum is 39.

The square root of 121844838 is about 11038.3349287834. The cubic root of 121844838 is about 495.7572167475.

It can be divided in two parts, 1218 and 44838, that added together give a triangular number (46056 = T₃₀₃).

The spelling of 121844838 in words is "one hundred twenty-one million, eight hundred forty-four thousand, eight hundred thirty-eight".