122640600 has 96 divisors (see below), whose sum is σ = 396760320. Its totient is φ = 31278720.

The previous prime is 122640593. The next prime is 122640629. The reversal of 122640600 is 6046221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9357 + ... + 18243.

It is an arithmetic number, because the mean of its divisors is an integer number (4132920).

Almost surely, 2^122640600 is an apocalyptic number.

122640600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122640600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198380160).

122640600 is an abundant number, since it is smaller than the sum of its proper divisors (274119720).

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

122640600 is a wasteful number, since it uses less digits than its factorization.

122640600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8929 (or 8920 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 122640600 is about 11074.3216496542. The cubic root of 122640600 is about 496.8341301774.

Adding to 122640600 its reverse (6046221), we get a palindrome (128686821).

The spelling of 122640600 in words is "one hundred twenty-two million, six hundred forty thousand, six hundred".