424004440 has 32 divisors (see below), whose sum is σ = 967085280. Its totient is φ = 167277312.

The previous prime is 424004431. The next prime is 424004461. The reversal of 424004440 is 44400424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69684 + ... + 75523.

It is an arithmetic number, because the mean of its divisors is an integer number (30221415).

Almost surely, 2^424004440 is an apocalyptic number.

424004440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424004440 is an abundant number, since it is smaller than the sum of its proper divisors (543080840).

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

424004440 is a wasteful number, since it uses less digits than its factorization.

424004440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145291 (or 145287 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 424004440 is about 20591.3680944225. The cubic root of 424004440 is about 751.2597731478.

Adding to 424004440 its reverse (44400424), we get a palindrome (468404864).

The spelling of 424004440 in words is "four hundred twenty-four million, four thousand, four hundred forty".