420339 has 8 divisors (see below), whose sum is σ = 564480. Its totient is φ = 278216.

The previous prime is 420331. The next prime is 420341. The reversal of 420339 is 933024.

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 420339 - 2³ = 420331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420331) 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, 82 + ... + 920.

It is an arithmetic number, because the mean of its divisors is an integer number (70560).

2⁴²⁰³³⁹ is an apocalyptic number.

420339 is a deficient number, since it is larger than the sum of its proper divisors (144141).

420339 is a wasteful number, since it uses less digits than its factorization.

420339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 420339 is about 648.3355612644. The cubic root of 420339 is about 74.9088670865.

The spelling of 420339 in words is "four hundred twenty thousand, three hundred thirty-nine".