122404720 has 40 divisors (see below), whose sum is σ = 285294240. Its totient is φ = 48840960.

The previous prime is 122404691. The next prime is 122404741. The reversal of 122404720 is 27404221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 122404691 and 122404700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35221 + ... + 38539.

It is an arithmetic number, because the mean of its divisors is an integer number (7132356).

Almost surely, 2^122404720 is an apocalyptic number.

122404720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122404720 is an abundant number, since it is smaller than the sum of its proper divisors (162889520).

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

122404720 is a wasteful number, since it uses less digits than its factorization.

122404720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3793 (or 3787 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 122404720 is about 11063.6666616452. Note that the first 5 decimals coincide. The cubic root of 122404720 is about 496.5153981825.

Adding to 122404720 its reverse (27404221), we get a palindrome (149808941).

The spelling of 122404720 in words is "one hundred twenty-two million, four hundred four thousand, seven hundred twenty".