122445420 has 48 divisors (see below), whose sum is σ = 343592928. Its totient is φ = 32581120.

The previous prime is 122445413. The next prime is 122445457. The reversal of 122445420 is 24544221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29302 + ... + 33218.

It is an arithmetic number, because the mean of its divisors is an integer number (7158186).

Almost surely, 2^122445420 is an apocalyptic number.

122445420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122445420 is an abundant number, since it is smaller than the sum of its proper divisors (221147508).

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

122445420 is a wasteful number, since it uses less digits than its factorization.

122445420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4450 (or 4448 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 122445420 is about 11065.5058628153. The cubic root of 122445420 is about 496.5704231231.

Adding to 122445420 its reverse (24544221), we get a palindrome (146989641).

The spelling of 122445420 in words is "one hundred twenty-two million, four hundred forty-five thousand, four hundred twenty".