122014640 has 80 divisors (see below), whose sum is σ = 314685216. Its totient is φ = 43622400.

The previous prime is 122014621. The next prime is 122014643. The reversal of 122014640 is 46410221.

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

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (122014643) 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, 52544 + ... + 54816.

Almost surely, 2^122014640 is an apocalyptic number.

122014640 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 122014640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157342608).

122014640 is an abundant number, since it is smaller than the sum of its proper divisors (192670576).

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

122014640 is a wasteful number, since it uses less digits than its factorization.

122014640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2358 (or 2352 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 122014640 is about 11046.0237189678. The cubic root of 122014640 is about 495.9874042934.

Adding to 122014640 its reverse (46410221), we get a palindrome (168424861).

The spelling of 122014640 in words is "one hundred twenty-two million, fourteen thousand, six hundred forty".