122310440 has 64 divisors (see below), whose sum is σ = 317640960. Its totient is φ = 41518080.

The previous prime is 122310413. The next prime is 122310451. The reversal of 122310440 is 44013221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26720 + ... + 30960.

It is an arithmetic number, because the mean of its divisors is an integer number (4963140).

Almost surely, 2^122310440 is an apocalyptic number.

122310440 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 122310440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158820480).

122310440 is an abundant number, since it is smaller than the sum of its proper divisors (195330520).

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

122310440 is a wasteful number, since it uses less digits than its factorization.

122310440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4362 (or 4358 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 122310440 is about 11059.4050472889. The cubic root of 122310440 is about 496.3878881337.

Adding to 122310440 its reverse (44013221), we get a palindrome (166323661).

The spelling of 122310440 in words is "one hundred twenty-two million, three hundred ten thousand, four hundred forty".