121444404 has 24 divisors (see below), whose sum is σ = 285071808. Its totient is φ = 40238400.

The previous prime is 121444403. The next prime is 121444417. The reversal of 121444404 is 404444121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121444403) 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, 28297 + ... + 32304.

It is an arithmetic number, because the mean of its divisors is an integer number (11877992).

Almost surely, 2^121444404 is an apocalyptic number.

It is an amenable number.

121444404 is an abundant number, since it is smaller than the sum of its proper divisors (163627404).

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

121444404 is a wasteful number, since it uses less digits than its factorization.

121444404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60775 (or 60773 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 121444404 is about 11020.1816681940. The cubic root of 121444404 is about 495.2135309744.

Adding to 121444404 its reverse (404444121), we get a palindrome (525888525).

The spelling of 121444404 in words is "one hundred twenty-one million, four hundred forty-four thousand, four hundred four".