403123424 has 48 divisors (see below), whose sum is σ = 867718656. Its totient is φ = 182832000.

The previous prime is 403123387. The next prime is 403123481. The reversal of 403123424 is 424321304.

It is a self number, because there is not a number n which added to its sum of digits gives 403123424.

It is a congruent number.

It is an unprimeable 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 7 ways as a sum of consecutive naturals, for example, 205649 + ... + 207599.

It is an arithmetic number, because the mean of its divisors is an integer number (18077472).

Almost surely, 2^403123424 is an apocalyptic number.

403123424 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403123424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (433859328).

403123424 is an abundant number, since it is smaller than the sum of its proper divisors (464595232).

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

403123424 is a wasteful number, since it uses less digits than its factorization.

403123424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559 (or 2551 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 403123424 is about 20077.9337582332. The cubic root of 403123424 is about 738.7191282551.

Adding to 403123424 its reverse (424321304), we get a palindrome (827444728).

The spelling of 403123424 in words is "four hundred three million, one hundred twenty-three thousand, four hundred twenty-four".