342406577 has 2 divisors, whose sum is σ = 342406578. Its totient is φ = 342406576.

The previous prime is 342406541. The next prime is 342406583. The reversal of 342406577 is 775604243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252460321 + 89946256 = 15889^2 + 9484^2 .

It is a cyclic number.

It is not a de Polignac number, because 342406577 - 2¹² = 342402481 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 342406577.

It is not a weakly prime, because it can be changed into another prime (342486577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171203288 + 171203289.

It is an arithmetic number, because the mean of its divisors is an integer number (171203289).

Almost surely, 2^342406577 is an apocalyptic number.

It is an amenable number.

342406577 is a deficient number, since it is larger than the sum of its proper divisors (1).

342406577 is an equidigital number, since it uses as much as digits as its factorization.

342406577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 38.

The square root of 342406577 is about 18504.2313269155. The cubic root of 342406577 is about 699.5960778533.

The spelling of 342406577 in words is "three hundred forty-two million, four hundred six thousand, five hundred seventy-seven".