342476221 has 2 divisors, whose sum is σ = 342476222. Its totient is φ = 342476220.

The previous prime is 342476207. The next prime is 342476243. The reversal of 342476221 is 122674243.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196308121 + 146168100 = 14011^2 + 12090^2 .

It is a cyclic number.

It is not a de Polignac number, because 342476221 - 2⁹ = 342475709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342476261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171238110 + 171238111.

It is an arithmetic number, because the mean of its divisors is an integer number (171238111).

Almost surely, 2^342476221 is an apocalyptic number.

It is an amenable number.

342476221 is a deficient number, since it is larger than the sum of its proper divisors (1).

342476221 is an equidigital number, since it uses as much as digits as its factorization.

342476221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 31.

The square root of 342476221 is about 18506.1130710909. The cubic root of 342476221 is about 699.6435062319.

The spelling of 342476221 in words is "three hundred forty-two million, four hundred seventy-six thousand, two hundred twenty-one".