424432040 has 16 divisors (see below), whose sum is σ = 954972180. Its totient is φ = 169772800.

The previous prime is 424432039. The next prime is 424432049. The reversal of 424432040 is 40234424.

It can be written as a sum of positive squares in 2 ways, for example, as 413634244 + 10797796 = 20338^2 + 3286^2 .

It is a junction number, because it is equal to n+sod(n) for n = 424431997 and 424432015.

It is not an unprimeable number, because it can be changed into a prime (424432049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5305361 + ... + 5305440.

Almost surely, 2^424432040 is an apocalyptic number.

424432040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424432040 is an abundant number, since it is smaller than the sum of its proper divisors (530540140).

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

424432040 is a wasteful number, since it uses less digits than its factorization.

424432040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10610812 (or 10610808 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 424432040 is about 20601.7484694868. The cubic root of 424432040 is about 751.5122317870.

Adding to 424432040 its reverse (40234424), we get a palindrome (464666464).

The spelling of 424432040 in words is "four hundred twenty-four million, four hundred thirty-two thousand, forty".