342139819 has 8 divisors (see below), whose sum is σ = 391340000. Its totient is φ = 293020416.

The previous prime is 342139813. The next prime is 342139867. The reversal of 342139819 is 918931243.

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 342139819 - 2¹⁷ = 342008747 is a prime.

It is a super-2 number, since 2×342139819² = 234119311490705522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342139813) 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, 10824 + ... + 28309.

It is an arithmetic number, because the mean of its divisors is an integer number (48917500).

Almost surely, 2^342139819 is an apocalyptic number.

342139819 is a deficient number, since it is larger than the sum of its proper divisors (49200181).

342139819 is a wasteful number, since it uses less digits than its factorization.

342139819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40389.

The product of its digits is 46656, while the sum is 40.

The square root of 342139819 is about 18497.0218954295. The cubic root of 342139819 is about 699.4143530189.

The spelling of 342139819 in words is "three hundred forty-two million, one hundred thirty-nine thousand, eight hundred nineteen".