122684400 has 180 divisors, whose sum is σ = 434456568. Its totient is φ = 32048640.

The previous prime is 122684383. The next prime is 122684411. The reversal of 122684400 is 4486221.

It is a tau number, because it is divible by the number of its divisors (180).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 190479 + ... + 191121.

Almost surely, 2^122684400 is an apocalyptic number.

122684400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122684400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217228284).

122684400 is an abundant number, since it is smaller than the sum of its proper divisors (311772168).

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

122684400 is a wasteful number, since it uses less digits than its factorization.

122684400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 706 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 122684400 is about 11076.2990208824. The cubic root of 122684400 is about 496.8932697685.

The spelling of 122684400 in words is "one hundred twenty-two million, six hundred eighty-four thousand, four hundred".