342215449 has 2 divisors, whose sum is σ = 342215450. Its totient is φ = 342215448.

The previous prime is 342215443. The next prime is 342215453. The reversal of 342215449 is 944512243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 283417225 + 58798224 = 16835^2 + 7668^2 .

It is a cyclic number.

It is not a de Polignac number, because 342215449 - 2¹¹ = 342213401 is a prime.

It is a super-2 number, since 2×342215449² = 234222827068543202, which contains 22 as substring.

It is equal to p_18407581 and since 342215449 and 18407581 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (342215443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171107724 + 171107725.

It is an arithmetic number, because the mean of its divisors is an integer number (171107725).

Almost surely, 2^342215449 is an apocalyptic number.

It is an amenable number.

342215449 is a deficient number, since it is larger than the sum of its proper divisors (1).

342215449 is an equidigital number, since it uses as much as digits as its factorization.

342215449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 34.

The square root of 342215449 is about 18499.0661656204. The cubic root of 342215449 is about 699.4658843983.

The spelling of 342215449 in words is "three hundred forty-two million, two hundred fifteen thousand, four hundred forty-nine".