122432440 has 32 divisors (see below), whose sum is σ = 296664480. Its totient is φ = 45205632.

The previous prime is 122432399. The next prime is 122432441. The reversal of 122432440 is 44234221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122432441) 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, 117204 + ... + 118243.

It is an arithmetic number, because the mean of its divisors is an integer number (9270765).

Almost surely, 2^122432440 is an apocalyptic number.

122432440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122432440 is an abundant number, since it is smaller than the sum of its proper divisors (174232040).

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

122432440 is a wasteful number, since it uses less digits than its factorization.

122432440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235471 (or 235467 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 122432440 is about 11064.9193399681. The cubic root of 122432440 is about 496.5528759530.

Adding to 122432440 its reverse (44234221), we get a palindrome (166666661).

The spelling of 122432440 in words is "one hundred twenty-two million, four hundred thirty-two thousand, four hundred forty".