122352440 has 32 divisors (see below), whose sum is σ = 314621280. Its totient is φ = 41949312.

The previous prime is 122352401. The next prime is 122352449. The reversal of 122352440 is 44253221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122352449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218207 + ... + 218766.

It is an arithmetic number, because the mean of its divisors is an integer number (9831915).

Almost surely, 2^122352440 is an apocalyptic number.

122352440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122352440 is an abundant number, since it is smaller than the sum of its proper divisors (192268840).

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

122352440 is a wasteful number, since it uses less digits than its factorization.

122352440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436991 (or 436987 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 122352440 is about 11061.3037206290. The cubic root of 122352440 is about 496.4446995975. Note that the first 3 decimals are identical.

The spelling of 122352440 in words is "one hundred twenty-two million, three hundred fifty-two thousand, four hundred forty".