418919338242 has 144 divisors (see below), whose sum is σ = 953052747192. Its totient is φ = 138089629440.

The previous prime is 418919338231. The next prime is 418919338247. The reversal of 418919338242 is 242833919814.

418919338242 is a `hidden beast` number, since 4 + 189 + 193 + 38 + 242 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 189833618601 + 229085719641 = 435699^2 + 478629^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (418919338247) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 553393728 + ... + 553394484.

Almost surely, 2^418919338242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 418919338242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (476526373596).

418919338242 is an abundant number, since it is smaller than the sum of its proper divisors (534133408950).

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

418919338242 is an equidigital number, since it uses as much as digits as its factorization.

418919338242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197 (or 1176 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The spelling of 418919338242 in words is "four hundred eighteen billion, nine hundred nineteen million, three hundred thirty-eight thousand, two hundred forty-two".