420474 has 8 divisors (see below), whose sum is σ = 840960. Its totient is φ = 140156.

The previous prime is 420467. The next prime is 420479. The reversal of 420474 is 474024.

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

420474 is an admirable number.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 420474.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 420474.

It is not an unprimeable number, because it can be changed into a prime (420479) by changing a digit.

420474 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35034 + ... + 35045.

It is an arithmetic number, because the mean of its divisors is an integer number (105120).

2⁴²⁰⁴⁷⁴ is an apocalyptic number.

420474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

420474 is a wasteful number, since it uses less digits than its factorization.

420474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70084.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 420474 is about 648.4396656590. The cubic root of 420474 is about 74.9168857053.

Adding to 420474 its reverse (474024), we get a palindrome (894498).

It can be divided in two parts, 4204 and 74, that added together give a triangular number (4278 = T₉₂).

The spelling of 420474 in words is "four hundred twenty thousand, four hundred seventy-four", and thus it is an iban number.