420337 has 4 divisors (see below), whose sum is σ = 442480. Its totient is φ = 398196.

The previous prime is 420331. The next prime is 420341. The reversal of 420337 is 733024.

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 420337 - 2¹¹ = 418289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 22123 = 420337 / (4 + 2 + 0 + 3 + 3 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11043 + ... + 11080.

It is an arithmetic number, because the mean of its divisors is an integer number (110620).

2⁴²⁰³³⁷ is an apocalyptic number.

It is an amenable number.

420337 is a deficient number, since it is larger than the sum of its proper divisors (22143).

420337 is a wasteful number, since it uses less digits than its factorization.

420337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22142.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 420337 is about 648.3340188514. The cubic root of 420337 is about 74.9087482793.

It can be divided in two parts, 420 and 337, that added together give a palindrome (757).

The spelling of 420337 in words is "four hundred twenty thousand, three hundred thirty-seven".