420620 has 12 divisors (see below), whose sum is σ = 883344. Its totient is φ = 168240.

The previous prime is 420613. The next prime is 420671. The reversal of 420620 is 26024.

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 420595 and 420604.

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, 10496 + ... + 10535.

It is an arithmetic number, because the mean of its divisors is an integer number (73612).

2⁴²⁰⁶²⁰ is an apocalyptic number.

It is an amenable number.

420620 is an abundant number, since it is smaller than the sum of its proper divisors (462724).

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

420620 is a wasteful number, since it uses less digits than its factorization.

420620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21040 (or 21038 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 420620 is about 648.5522338255. The cubic root of 420620 is about 74.9255557615.

Adding to 420620 its reverse (26024), we get a palindrome (446644).

The spelling of 420620 in words is "four hundred twenty thousand, six hundred twenty".