121429384 has 16 divisors (see below), whose sum is σ = 228280320. Its totient is φ = 60554640.

The previous prime is 121429381. The next prime is 121429403. The reversal of 121429384 is 483924121.

It is not an unprimeable number, because it can be changed into a prime (121429381) 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, 16752 + ... + 22879.

It is an arithmetic number, because the mean of its divisors is an integer number (14267520).

Almost surely, 2^121429384 is an apocalyptic number.

It is an amenable number.

121429384 is a deficient number, since it is larger than the sum of its proper divisors (106850936).

121429384 is a wasteful number, since it uses less digits than its factorization.

121429384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40020 (or 40016 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 121429384 is about 11019.5001701529. The cubic root of 121429384 is about 495.1931144610.

The spelling of 121429384 in words is "one hundred twenty-one million, four hundred twenty-nine thousand, three hundred eighty-four".