342709919 has 4 divisors (see below), whose sum is σ = 362869344. Its totient is φ = 322550496.

The previous prime is 342709901. The next prime is 342709931. The reversal of 342709919 is 919907243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342709919 is a prime.

It is a super-2 number, since 2×342709919² = 234900177161973122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 342709919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342709949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10079687 + ... + 10079720.

It is an arithmetic number, because the mean of its divisors is an integer number (90717336).

Almost surely, 2^342709919 is an apocalyptic number.

342709919 is a deficient number, since it is larger than the sum of its proper divisors (20159425).

342709919 is a wasteful number, since it uses less digits than its factorization.

342709919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20159424.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 342709919 is about 18512.4260700752. The cubic root of 342709919 is about 699.8026103307.

The spelling of 342709919 in words is "three hundred forty-two million, seven hundred nine thousand, nine hundred nineteen".