424043440 has 40 divisors (see below), whose sum is σ = 986776128. Its totient is φ = 169466880.

The previous prime is 424043419. The next prime is 424043449. The reversal of 424043440 is 44340424.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (424043449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148264 + ... + 151096.

Almost surely, 2^424043440 is an apocalyptic number.

424043440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424043440 is an abundant number, since it is smaller than the sum of its proper divisors (562732688).

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

424043440 is a wasteful number, since it uses less digits than its factorization.

424043440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4717 (or 4711 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 424043440 is about 20592.3150714047. The cubic root of 424043440 is about 751.2828061085.

Adding to 424043440 its reverse (44340424), we get a palindrome (468383864).

The spelling of 424043440 in words is "four hundred twenty-four million, forty-three thousand, four hundred forty".