421472 has 12 divisors (see below), whose sum is σ = 829836. Its totient is φ = 210720.

The previous prime is 421471. The next prime is 421483. The reversal of 421472 is 274124.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6554 + ... + 6617.

It is an arithmetic number, because the mean of its divisors is an integer number (69153).

2⁴²¹⁴⁷² is an apocalyptic number.

It is an amenable number.

421472 is a deficient number, since it is larger than the sum of its proper divisors (408364).

421472 is a wasteful number, since it uses less digits than its factorization.

421472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13181 (or 13173 counting only the distinct ones).

The product of its digits is 448, while the sum is 20.

The square root of 421472 is about 649.2087491709. The cubic root of 421472 is about 74.9761109101.

Adding to 421472 its reverse (274124), we get a palindrome (695596).

The spelling of 421472 in words is "four hundred twenty-one thousand, four hundred seventy-two", and thus it is an iban number.