420448 has 24 divisors (see below), whose sum is σ = 946512. Its totient is φ = 180096.

The previous prime is 420439. The next prime is 420457. The reversal of 420448 is 844024.

It is an interprime number because it is at equal distance from previous prime (420439) and next prime (420457).

It is a congruent number.

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, 715 + ... + 1162.

It is an arithmetic number, because the mean of its divisors is an integer number (39438).

2⁴²⁰⁴⁴⁸ is an apocalyptic number.

It is an amenable number.

420448 is an abundant number, since it is smaller than the sum of its proper divisors (526064).

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

420448 is a wasteful number, since it uses less digits than its factorization.

420448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894 (or 1886 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 420448 is about 648.4196172233. The cubic root of 420448 is about 74.9153415122.

It can be divided in two parts, 420 and 448, that added together give a palindrome (868).

The spelling of 420448 in words is "four hundred twenty thousand, four hundred forty-eight".