342509393 has 4 divisors (see below), whose sum is σ = 342551040. Its totient is φ = 342467748.

The previous prime is 342509383. The next prime is 342509411. The reversal of 342509393 is 393905243.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 342509393 - 2¹⁴ = 342493009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342509383) 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, 3905 + ... + 26462.

It is an arithmetic number, because the mean of its divisors is an integer number (85637760).

Almost surely, 2^342509393 is an apocalyptic number.

It is an amenable number.

342509393 is a deficient number, since it is larger than the sum of its proper divisors (41647).

342509393 is a wasteful number, since it uses less digits than its factorization.

342509393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41646.

The product of its (nonzero) digits is 87480, while the sum is 38.

The square root of 342509393 is about 18507.0092937784. The cubic root of 342509393 is about 699.6660944913. Note that the first 3 decimals are identical.

The spelling of 342509393 in words is "three hundred forty-two million, five hundred nine thousand, three hundred ninety-three".