342315421 has 12 divisors (see below), whose sum is σ = 400748988. Its totient is φ = 291537792.

The previous prime is 342315409. The next prime is 342315427. The reversal of 342315421 is 124513243.

It can be written as a sum of positive squares in 2 ways, for example, as 163558521 + 178756900 = 12789^2 + 13370^2 .

It is not a de Polignac number, because 342315421 - 2⁷ = 342315293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342315427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14556 + ... + 29941.

It is an arithmetic number, because the mean of its divisors is an integer number (33395749).

Almost surely, 2^342315421 is an apocalyptic number.

It is an amenable number.

342315421 is a deficient number, since it is larger than the sum of its proper divisors (58433567).

342315421 is a wasteful number, since it uses less digits than its factorization.

342315421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44668 (or 44661 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 342315421 is about 18501.7680506486. The cubic root of 342315421 is about 699.5339898324.

Adding to 342315421 its reverse (124513243), we get a palindrome (466828664).

The spelling of 342315421 in words is "three hundred forty-two million, three hundred fifteen thousand, four hundred twenty-one".