420492 has 24 divisors (see below), whose sum is σ = 997696. Its totient is φ = 137808.

The previous prime is 420481. The next prime is 420499. The reversal of 420492 is 294024.

It is not an unprimeable number, because it can be changed into a prime (420499) by changing a digit.

420492 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 7 ways as a sum of consecutive naturals, for example, 543 + ... + 1065.

2⁴²⁰⁴⁹² is an apocalyptic number.

It is an amenable number.

420492 is an abundant number, since it is smaller than the sum of its proper divisors (577204).

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

420492 is a wasteful number, since it uses less digits than its factorization.

420492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597 (or 595 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 420492 is about 648.4535449822. The cubic root of 420492 is about 74.9179547248.

The spelling of 420492 in words is "four hundred twenty thousand, four hundred ninety-two".