342529 has 4 divisors (see below), whose sum is σ = 373680. Its totient is φ = 311380.

The previous prime is 342527. The next prime is 342547. The reversal of 342529 is 925243.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 342529 - 2¹ = 342527 is a prime.

It is a super-2 number, since 2×342529² = 234652231682, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3⁷ + 4³ + 5⁷ + 2¹⁷ + 2¹⁷ + 9 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15559 + ... + 15580.

It is an arithmetic number, because the mean of its divisors is an integer number (93420).

2³⁴²⁵²⁹ is an apocalyptic number.

It is an amenable number.

342529 is a deficient number, since it is larger than the sum of its proper divisors (31151).

342529 is a wasteful number, since it uses less digits than its factorization.

342529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31150.

The product of its digits is 2160, while the sum is 25.

The square root of 342529 is about 585.2597713836. The cubic root of 342529 is about 69.9679445066.

The spelling of 342529 in words is "three hundred forty-two thousand, five hundred twenty-nine".