424788 has 48 divisors (see below), whose sum is σ = 1223040. Its totient is φ = 111744.

The previous prime is 424777. The next prime is 424811. The reversal of 424788 is 887424.

It is a congruent number.

It is an unprimeable number.

424788 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 15 ways as a sum of consecutive naturals, for example, 898 + ... + 1286.

It is an arithmetic number, because the mean of its divisors is an integer number (25480).

2⁴²⁴⁷⁸⁸ 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 424788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (611520).

424788 is an abundant number, since it is smaller than the sum of its proper divisors (798252).

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

424788 is a wasteful number, since it uses less digits than its factorization.

424788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416 (or 414 counting only the distinct ones).

The product of its digits is 14336, while the sum is 33.

The square root of 424788 is about 651.7576236608. The cubic root of 424788 is about 75.1722264269.

It can be divided in two parts, 42478 and 8, that added together give a triangular number (42486 = T₂₉₁).

The spelling of 424788 in words is "four hundred twenty-four thousand, seven hundred eighty-eight".