342242440 has 96 divisors (see below), whose sum is σ = 823371480. Its totient is φ = 128001024.

The previous prime is 342242437. The next prime is 342242441. The reversal of 342242440 is 44242243.

It can be written as a sum of positive squares in 4 ways, for example, as 331312804 + 10929636 = 18202^2 + 3306^2 .

It is not an unprimeable number, because it can be changed into a prime (342242441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1978194 + ... + 1978366.

Almost surely, 2^342242440 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 342242440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411685740).

342242440 is an abundant number, since it is smaller than the sum of its proper divisors (481129040).

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

342242440 is a wasteful number, since it uses less digits than its factorization.

342242440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 342242440 is about 18499.7956745473. The cubic root of 342242440 is about 699.4842731915.

Adding to 342242440 its reverse (44242243), we get a palindrome (386484683).

The spelling of 342242440 in words is "three hundred forty-two million, two hundred forty-two thousand, four hundred forty".