423488 has 28 divisors (see below), whose sum is σ = 906780. Its totient is φ = 195072.

The previous prime is 423481. The next prime is 423497. The reversal of 423488 is 884324.

It can be written as a sum of positive squares in 2 ways, for example, as 200704 + 222784 = 448^2 + 472^2 .

It is a super-2 number, since 2×423488² = 358684172288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 423488.

It is not an unprimeable number, because it can be changed into a prime (423481) by changing a digit.

423488 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 in 3 ways as a sum of consecutive naturals, for example, 578 + ... + 1086.

It is an arithmetic number, because the mean of its divisors is an integer number (32385).

2⁴²³⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453390).

423488 is an abundant number, since it is smaller than the sum of its proper divisors (483292).

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

423488 is a wasteful number, since it uses less digits than its factorization.

423488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 524 counting only the distinct ones).

The product of its digits is 6144, while the sum is 29.

The square root of 423488 is about 650.7595562110. The cubic root of 423488 is about 75.0954636229.

The spelling of 423488 in words is "four hundred twenty-three thousand, four hundred eighty-eight".