342121144 has 24 divisors (see below), whose sum is σ = 677021760. Its totient is φ = 162056016.

The previous prime is 342121139. The next prime is 342121147. The reversal of 342121144 is 441121243.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342121147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56344 + ... + 62119.

It is an arithmetic number, because the mean of its divisors is an integer number (28209240).

Almost surely, 2^342121144 is an apocalyptic number.

It is an amenable number.

342121144 is a deficient number, since it is larger than the sum of its proper divisors (334900616).

342121144 is a wasteful number, since it uses less digits than its factorization.

342121144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118507 (or 118484 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 342121144 is about 18496.5170775473. The cubic root of 342121144 is about 699.4016274216.

Adding to 342121144 its reverse (441121243), we get a palindrome (783242387).

Subtracting 342121144 from its reverse (441121243), we obtain a palindrome (99000099).

The spelling of 342121144 in words is "three hundred forty-two million, one hundred twenty-one thousand, one hundred forty-four".