418399972424 has 96 divisors (see below), whose sum is σ = 958375281600. Its totient is φ = 167545526400.

The previous prime is 418399972423. The next prime is 418399972429. The reversal of 418399972424 is 424279993814.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is not an unprimeable number, because it can be changed into a prime (418399972423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1426619 + ... + 1694709.

It is an arithmetic number, because the mean of its divisors is an integer number (9983075850).

Almost surely, 2^418399972424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 418399972424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (479187640800).

418399972424 is an abundant number, since it is smaller than the sum of its proper divisors (539975309176).

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

418399972424 is a wasteful number, since it uses less digits than its factorization.

418399972424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268195 (or 268160 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 62.

The spelling of 418399972424 in words is "four hundred eighteen billion, three hundred ninety-nine million, nine hundred seventy-two thousand, four hundred twenty-four".