121444448 has 24 divisors (see below), whose sum is σ = 239804712. Its totient is φ = 60541696.

The previous prime is 121444441. The next prime is 121444451. The reversal of 121444448 is 844444121.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121444441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5636 + ... + 16572.

It is an arithmetic number, because the mean of its divisors is an integer number (9991863).

Almost surely, 2^121444448 is an apocalyptic number.

It is an amenable number.

121444448 is a deficient number, since it is larger than the sum of its proper divisors (118360264).

121444448 is a wasteful number, since it uses less digits than its factorization.

121444448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11294 (or 11286 counting only the distinct ones).

The product of its digits is 16384, while the sum is 32.

The square root of 121444448 is about 11020.1836645312. The cubic root of 121444448 is about 495.2135907806.

Adding to 121444448 its reverse (844444121), we get a palindrome (965888569).

The spelling of 121444448 in words is "one hundred twenty-one million, four hundred forty-four thousand, four hundred forty-eight".