122645424 has 160 divisors (see below), whose sum is σ = 365690880. Its totient is φ = 35078400.

The previous prime is 122645423. The next prime is 122645431. The reversal of 122645424 is 424546221.

It is a junction number, because it is equal to n+sod(n) for n = 122645391 and 122645400.

It is not an unprimeable number, because it can be changed into a prime (122645423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 965649 + ... + 965775.

It is an arithmetic number, because the mean of its divisors is an integer number (2285568).

Almost surely, 2^122645424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122645424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182845440).

122645424 is an abundant number, since it is smaller than the sum of its proper divisors (243045456).

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

122645424 is a wasteful number, since it uses less digits than its factorization.

122645424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 233 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

The square root of 122645424 is about 11074.5394486633. The cubic root of 122645424 is about 496.8406443237.

It can be divided in two parts, 122 and 645424, that added together give a palindrome (645546).

The spelling of 122645424 in words is "one hundred twenty-two million, six hundred forty-five thousand, four hundred twenty-four".