342011421 has 6 divisors (see below), whose sum is σ = 494016510. Its totient is φ = 228007608.

The previous prime is 342011407. The next prime is 342011431. The reversal of 342011421 is 124110243.

It can be written as a sum of positive squares in only one way, i.e., 251571321 + 90440100 = 15861^2 + 9510^2 .

It is not a de Polignac number, because 342011421 - 2¹⁸ = 341749277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 342011394 and 342011403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342011401) 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, 19000626 + ... + 19000643.

It is an arithmetic number, because the mean of its divisors is an integer number (82336085).

Almost surely, 2^342011421 is an apocalyptic number.

It is an amenable number.

342011421 is a deficient number, since it is larger than the sum of its proper divisors (152005089).

342011421 is a wasteful number, since it uses less digits than its factorization.

342011421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38001275 (or 38001272 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 342011421 is about 18493.5507948041. The cubic root of 342011421 is about 699.3268501568.

Adding to 342011421 its reverse (124110243), we get a palindrome (466121664).

It can be divided in two parts, 3420 and 11421, that added together give a palindrome (14841).

The spelling of 342011421 in words is "three hundred forty-two million, eleven thousand, four hundred twenty-one".