424424440 has 48 divisors (see below), whose sum is σ = 1049673240. Its totient is φ = 154334400.

The previous prime is 424424389. The next prime is 424424443. The reversal of 424424440 is 44424424.

It is a super-2 number, since 2×424424440² = 360272210538627200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 424424399 and 424424408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424424443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39006 + ... + 48685.

Almost surely, 2^424424440 is an apocalyptic number.

424424440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424424440 is an abundant number, since it is smaller than the sum of its proper divisors (625248800).

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

424424440 is a wasteful number, since it uses less digits than its factorization.

424424440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87724 (or 87709 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

The square root of 424424440 is about 20601.5640182973. The cubic root of 424424440 is about 751.5077461635.

Adding to 424424440 its reverse (44424424), we get a palindrome (468848864).

The spelling of 424424440 in words is "four hundred twenty-four million, four hundred twenty-four thousand, four hundred forty".