122407420 has 12 divisors (see below), whose sum is σ = 257055624. Its totient is φ = 48962960.

The previous prime is 122407399. The next prime is 122407421. The reversal of 122407420 is 24704221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122407391 and 122407400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122407421) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3060166 + ... + 3060205.

It is an arithmetic number, because the mean of its divisors is an integer number (21421302).

Almost surely, 2^122407420 is an apocalyptic number.

122407420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122407420 is an abundant number, since it is smaller than the sum of its proper divisors (134648204).

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

122407420 is a wasteful number, since it uses less digits than its factorization.

122407420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6120380 (or 6120378 counting only the distinct ones).

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

The square root of 122407420 is about 11063.7886820022. The cubic root of 122407420 is about 496.5190488634.

The spelling of 122407420 in words is "one hundred twenty-two million, four hundred seven thousand, four hundred twenty".