420936 has 16 divisors (see below), whose sum is σ = 1052400. Its totient is φ = 140304.

The previous prime is 420929. The next prime is 420941. The reversal of 420936 is 639024.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 17539 = 420936 / (4 + 2 + 0 + 9 + 3 + 6).

It is an unprimeable number.

420936 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8746 + ... + 8793.

It is an arithmetic number, because the mean of its divisors is an integer number (65775).

2⁴²⁰⁹³⁶ is an apocalyptic number.

It is an amenable number.

420936 is an abundant number, since it is smaller than the sum of its proper divisors (631464).

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

420936 is a wasteful number, since it uses less digits than its factorization.

420936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17548 (or 17544 counting only the distinct ones).

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

The square root of 420936 is about 648.7958076313. The cubic root of 420936 is about 74.9443142204.

The spelling of 420936 in words is "four hundred twenty thousand, nine hundred thirty-six".