122399984 has 40 divisors (see below), whose sum is σ = 275637120. Its totient is φ = 51565248.

The previous prime is 122399941. The next prime is 122399987. The reversal of 122399984 is 489993221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122399987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2654 + ... + 15869.

It is an arithmetic number, because the mean of its divisors is an integer number (6890928).

Almost surely, 2^122399984 is an apocalyptic number.

122399984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

122399984 is an abundant number, since it is smaller than the sum of its proper divisors (153237136).

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

122399984 is a wasteful number, since it uses less digits than its factorization.

122399984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18597 (or 18591 counting only the distinct ones).

The product of its digits is 279936, while the sum is 47.

The square root of 122399984 is about 11063.4526256499. The cubic root of 122399984 is about 496.5089944881.

The spelling of 122399984 in words is "one hundred twenty-two million, three hundred ninety-nine thousand, nine hundred eighty-four".