122744320 has 40 divisors (see below), whose sum is σ = 294304824. Its totient is φ = 49096704.

The previous prime is 122744287. The next prime is 122744339. The reversal of 122744320 is 23447221.

It is a happy number.

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

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 3 ways as a sum of consecutive naturals, for example, 21414 + ... + 26533.

Almost surely, 2^122744320 is an apocalyptic number.

122744320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122744320 is an abundant number, since it is smaller than the sum of its proper divisors (171560504).

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

122744320 is an frugal number, since it uses more digits than its factorization.

122744320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47970 (or 47954 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 122744320 is about 11079.0035653032. The cubic root of 122744320 is about 496.9741520941.

The spelling of 122744320 in words is "one hundred twenty-two million, seven hundred forty-four thousand, three hundred twenty".