342479 has 4 divisors (see below), whose sum is σ = 344400. Its totient is φ = 340560.

The previous prime is 342469. The next prime is 342481. The reversal of 342479 is 974243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 974243 = 617 ⋅1579.

It is a cyclic number.

It is not a de Polignac number, because 342479 - 2¹² = 338383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 342479.

It is not an unprimeable number, because it can be changed into a prime (342449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662 + ... + 1059.

It is an arithmetic number, because the mean of its divisors is an integer number (86100).

2³⁴²⁴⁷⁹ is an apocalyptic number.

342479 is a deficient number, since it is larger than the sum of its proper divisors (1921).

342479 is a wasteful number, since it uses less digits than its factorization.

342479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920.

The product of its digits is 6048, while the sum is 29.

The square root of 342479 is about 585.2170537501. The cubic root of 342479 is about 69.9645398630.

The spelling of 342479 in words is "three hundred forty-two thousand, four hundred seventy-nine".