342185489 has 4 divisors (see below), whose sum is σ = 342245556. Its totient is φ = 342125424.

The previous prime is 342185461. The next prime is 342185507. The reversal of 342185489 is 984581243.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 176677264 + 165508225 = 13292^2 + 12865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342185489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (342185449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20474 + ... + 33219.

It is an arithmetic number, because the mean of its divisors is an integer number (85561389).

Almost surely, 2^342185489 is an apocalyptic number.

It is an amenable number.

342185489 is a deficient number, since it is larger than the sum of its proper divisors (60067).

342185489 is an equidigital number, since it uses as much as digits as its factorization.

342185489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60066.

The product of its digits is 276480, while the sum is 44.

The square root of 342185489 is about 18498.2563772913. The cubic root of 342185489 is about 699.4454717123.

The spelling of 342185489 in words is "three hundred forty-two million, one hundred eighty-five thousand, four hundred eighty-nine".