342016309 has 8 divisors (see below), whose sum is σ = 346575960. Its totient is φ = 337483776.

The previous prime is 342016303. The next prime is 342016313. The reversal of 342016309 is 903610243.

It can be written as a sum of positive squares in 4 ways, for example, as 25959025 + 316057284 = 5095^2 + 17778^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 342016309 - 2¹⁵ = 341983541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342016303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19269 + ... + 32485.

It is an arithmetic number, because the mean of its divisors is an integer number (43321995).

Almost surely, 2^342016309 is an apocalyptic number.

It is an amenable number.

342016309 is a deficient number, since it is larger than the sum of its proper divisors (4559651).

342016309 is a wasteful number, since it uses less digits than its factorization.

342016309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13559.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 342016309 is about 18493.6829485097. The cubic root of 342016309 is about 699.3301817155.

The spelling of 342016309 in words is "three hundred forty-two million, sixteen thousand, three hundred nine".