342129009 has 8 divisors (see below), whose sum is σ = 456270400. Its totient is φ = 228036816.

The previous prime is 342128981. The next prime is 342129061. The reversal of 342129009 is 900921243.

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

It is not a de Polignac number, because 342129009 - 2¹⁵ = 342096241 is a prime.

It is a super-3 number, since 3×342129009³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342129509) 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, 9399 + ... + 27795.

It is an arithmetic number, because the mean of its divisors is an integer number (57033800).

Almost surely, 2^342129009 is an apocalyptic number.

It is an amenable number.

342129009 is a deficient number, since it is larger than the sum of its proper divisors (114141391).

342129009 is a wasteful number, since it uses less digits than its factorization.

342129009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24599.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 342129009 is about 18496.7296839198. The cubic root of 342129009 is about 699.4069868796.

The spelling of 342129009 in words is "three hundred forty-two million, one hundred twenty-nine thousand, nine".