420548 has 6 divisors (see below), whose sum is σ = 735966. Its totient is φ = 210272.

The previous prime is 420521. The next prime is 420551. The reversal of 420548 is 845024.

It can be written as a sum of positive squares in only one way, i.e., 262144 + 158404 = 512^2 + 398^2 .

It is an unprimeable number.

420548 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 as a sum of consecutive naturals, namely, 52565 + ... + 52572.

It is an arithmetic number, because the mean of its divisors is an integer number (122661).

2⁴²⁰⁵⁴⁸ is an apocalyptic number.

It is an amenable number.

420548 is a deficient number, since it is larger than the sum of its proper divisors (315418).

420548 is a wasteful number, since it uses less digits than its factorization.

420548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105141 (or 105139 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 420548 is about 648.4967231991. The cubic root of 420548 is about 74.9212803681.

The spelling of 420548 in words is "four hundred twenty thousand, five hundred forty-eight".