423880 has 16 divisors (see below), whose sum is σ = 953820. Its totient is φ = 169536.

The previous prime is 423869. The next prime is 423883. The reversal of 423880 is 88324.

It can be written as a sum of positive squares in 2 ways, for example, as 367236 + 56644 = 606^2 + 238^2 .

It is not an unprimeable number, because it can be changed into a prime (423883) by changing a digit.

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, 5259 + ... + 5338.

2⁴²³⁸⁸⁰ is an apocalyptic number.

423880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423880 is an abundant number, since it is smaller than the sum of its proper divisors (529940).

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

423880 is a wasteful number, since it uses less digits than its factorization.

423880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10608 (or 10604 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 423880 is about 651.0606730559. The cubic root of 423880 is about 75.1186270841.

The spelling of 423880 in words is "four hundred twenty-three thousand, eight hundred eighty".