420396 has 24 divisors (see below), whose sum is σ = 1000944. Its totient is φ = 137280.

The previous prime is 420383. The next prime is 420397. The reversal of 420396 is 693024.

It is not an unprimeable number, because it can be changed into a prime (420397) 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, 306 + ... + 966.

It is an arithmetic number, because the mean of its divisors is an integer number (41706).

2⁴²⁰³⁹⁶ is an apocalyptic number.

It is an amenable number.

420396 is an abundant number, since it is smaller than the sum of its proper divisors (580548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420396 is a wasteful number, since it uses less digits than its factorization.

420396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 420396 is about 648.3795184921. The cubic root of 420396 is about 74.9122529350.

The spelling of 420396 in words is "four hundred twenty thousand, three hundred ninety-six".