121644308 has 48 divisors (see below), whose sum is σ = 232377600. Its totient is φ = 55520640.

The previous prime is 121644307. The next prime is 121644311. The reversal of 121644308 is 803446121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121644301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 508853 + ... + 509091.

It is an arithmetic number, because the mean of its divisors is an integer number (4841200).

Almost surely, 2^121644308 is an apocalyptic number.

It is an amenable number.

121644308 is a deficient number, since it is larger than the sum of its proper divisors (110733292).

121644308 is a wasteful number, since it uses less digits than its factorization.

121644308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 121644308 is about 11029.2478438015. The cubic root of 121644308 is about 495.4850980315.

The spelling of 121644308 in words is "one hundred twenty-one million, six hundred forty-four thousand, three hundred eight".