122434043440 has 80 divisors (see below), whose sum is σ = 297367181568. Its totient is φ = 46792044288.

The previous prime is 122434043429. The next prime is 122434043441. The reversal of 122434043440 is 44340434221.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (122434043441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1632199 + ... + 1705561.

Almost surely, 2^122434043440 is an apocalyptic number.

122434043440 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 122434043440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148683590784).

122434043440 is an abundant number, since it is smaller than the sum of its proper divisors (174933138128).

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

122434043440 is a wasteful number, since it uses less digits than its factorization.

122434043440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74306 (or 74300 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 122434043440 its reverse (44340434221), we get a palindrome (166774477661).

The spelling of 122434043440 in words is "one hundred twenty-two billion, four hundred thirty-four million, forty-three thousand, four hundred forty".