342320405 has 8 divisors (see below), whose sum is σ = 469468032. Its totient is φ = 234733968.

The previous prime is 342320401. The next prime is 342320453. The reversal of 342320405 is 504023243.

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

It is not a de Polignac number, because 342320405 - 2² = 342320401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342320401) 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, 4890257 + ... + 4890326.

It is an arithmetic number, because the mean of its divisors is an integer number (58683504).

Almost surely, 2^342320405 is an apocalyptic number.

342320405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

342320405 is a deficient number, since it is larger than the sum of its proper divisors (127147627).

342320405 is an equidigital number, since it uses as much as digits as its factorization.

342320405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9780595.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 342320405 is about 18501.9027399887. The cubic root of 342320405 is about 699.5373848110.

Adding to 342320405 its reverse (504023243), we get a palindrome (846343648).

The spelling of 342320405 in words is "three hundred forty-two million, three hundred twenty thousand, four hundred five".