342412421 has 6 divisors (see below), whose sum is σ = 370778130. Its totient is φ = 316072848.

The previous prime is 342412417. The next prime is 342412423. The reversal of 342412421 is 124214243.

It can be written as a sum of positive squares in 3 ways, for example, as 48804196 + 293608225 = 6986^2 + 17135^2 .

It is not a de Polignac number, because 342412421 - 2² = 342412417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342412423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1012886 + ... + 1013223.

It is an arithmetic number, because the mean of its divisors is an integer number (61796355).

Almost surely, 2^342412421 is an apocalyptic number.

It is an amenable number.

342412421 is a deficient number, since it is larger than the sum of its proper divisors (28365709).

342412421 is a wasteful number, since it uses less digits than its factorization.

342412421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026135 (or 2026122 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 342412421 is about 18504.3892360705. The cubic root of 342412421 is about 699.6000579329.

Adding to 342412421 its reverse (124214243), we get a palindrome (466626664).

The spelling of 342412421 in words is "three hundred forty-two million, four hundred twelve thousand, four hundred twenty-one".