121844800 has 336 divisors, whose sum is σ = 399117312. Its totient is φ = 35481600.

The previous prime is 121844783. The next prime is 121844813. The reversal of 121844800 is 8448121.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2833579 + ... + 2833621.

Almost surely, 2^121844800 is an apocalyptic number.

121844800 is a gapful number since it is divisible by the number (10) 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 121844800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199558656).

121844800 is an abundant number, since it is smaller than the sum of its proper divisors (277272512).

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

121844800 is a wasteful number, since it uses less digits than its factorization.

121844800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 121844800 is about 11038.3332075092. Note that the first 3 decimals coincide. The cubic root of 121844800 is about 495.7571652099.

The spelling of 121844800 in words is "one hundred twenty-one million, eight hundred forty-four thousand, eight hundred".