342509386 has 8 divisors (see below), whose sum is σ = 513842724. Its totient is φ = 171228480.

The previous prime is 342509383. The next prime is 342509411. The reversal of 342509386 is 683905243.

It can be written as a sum of positive squares in 2 ways, for example, as 339849225 + 2660161 = 18435^2 + 1631^2 .

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

It is not an unprimeable number, because it can be changed into a prime (342509381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17826 + ... + 31666.

Almost surely, 2^342509386 is an apocalyptic number.

342509386 is a deficient number, since it is larger than the sum of its proper divisors (171333338).

342509386 is a wasteful number, since it uses less digits than its factorization.

342509386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26216.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 342509386 is about 18507.0091046609. The cubic root of 342509386 is about 699.6660897248. Note that the first 3 decimals are identical.

The spelling of 342509386 in words is "three hundred forty-two million, five hundred nine thousand, three hundred eighty-six".