420826 has 8 divisors (see below), whose sum is σ = 721440. Its totient is φ = 180348.

The previous prime is 420811. The next prime is 420851. The reversal of 420826 is 628024.

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

It is a junction number, because it is equal to n+sod(n) for n = 420797 and 420806.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15016 + ... + 15043.

It is an arithmetic number, because the mean of its divisors is an integer number (90180).

2⁴²⁰⁸²⁶ is an apocalyptic number.

420826 is a deficient number, since it is larger than the sum of its proper divisors (300614).

420826 is a wasteful number, since it uses less digits than its factorization.

420826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30068.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 420826 is about 648.7110296580. The cubic root of 420826 is about 74.9377854426.

The spelling of 420826 in words is "four hundred twenty thousand, eight hundred twenty-six".