121856448 has 112 divisors (see below), whose sum is σ = 373953024. Its totient is φ = 34298880.

The previous prime is 121856411. The next prime is 121856531. The reversal of 121856448 is 844658121.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94786 + ... + 96062.

Almost surely, 2^121856448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121856448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186976512).

121856448 is an abundant number, since it is smaller than the sum of its proper divisors (252096576).

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

121856448 is a wasteful number, since it uses less digits than its factorization.

121856448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370 (or 1360 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The square root of 121856448 is about 11038.8608107902. The cubic root of 121856448 is about 495.7729623427.

The spelling of 121856448 in words is "one hundred twenty-one million, eight hundred fifty-six thousand, four hundred forty-eight".