342509387 has 8 divisors (see below), whose sum is σ = 395626032. Its totient is φ = 293056000.

The previous prime is 342509383. The next prime is 342509411. The reversal of 342509387 is 783905243.

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 342509387 - 2² = 342509383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342509381) 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, 915614 + ... + 915987.

It is an arithmetic number, because the mean of its divisors is an integer number (49453254).

Almost surely, 2^342509387 is an apocalyptic number.

342509387 is a deficient number, since it is larger than the sum of its proper divisors (53116645).

342509387 is a wasteful number, since it uses less digits than its factorization.

342509387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831629.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 342509387 is about 18507.0091316777. The cubic root of 342509387 is about 699.6660904057. Note that the first 3 decimals are identical.

The spelling of 342509387 in words is "three hundred forty-two million, five hundred nine thousand, three hundred eighty-seven".