342061639 has 2 divisors, whose sum is σ = 342061640. Its totient is φ = 342061638.

The previous prime is 342061631. The next prime is 342061679. The reversal of 342061639 is 936160243.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 342061639 - 2³ = 342061631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342061631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171030819 + 171030820.

It is an arithmetic number, because the mean of its divisors is an integer number (171030820).

Almost surely, 2^342061639 is an apocalyptic number.

342061639 is a deficient number, since it is larger than the sum of its proper divisors (1).

342061639 is an equidigital number, since it uses as much as digits as its factorization.

342061639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 342061639 is about 18494.9084615199. The cubic root of 342061639 is about 699.3610761845.

The spelling of 342061639 in words is "three hundred forty-two million, sixty-one thousand, six hundred thirty-nine".