342729905 has 8 divisors (see below), whose sum is σ = 470029632. Its totient is φ = 235014768.

The previous prime is 342729883. The next prime is 342729913. The reversal of 342729905 is 509927243.

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 342729905 - 2⁶ = 342729841 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4896107 + ... + 4896176.

It is an arithmetic number, because the mean of its divisors is an integer number (58753704).

Almost surely, 2^342729905 is an apocalyptic number.

342729905 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

342729905 is a deficient number, since it is larger than the sum of its proper divisors (127299727).

342729905 is an equidigital number, since it uses as much as digits as its factorization.

342729905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9792295.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 342729905 is about 18512.9658617953. The cubic root of 342729905 is about 699.8162136555.

The spelling of 342729905 in words is "three hundred forty-two million, seven hundred twenty-nine thousand, nine hundred five".