424755440 has 20 divisors (see below), whose sum is σ = 987556584. Its totient is φ = 169902144.

The previous prime is 424755433. The next prime is 424755473. The reversal of 424755440 is 44557424.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 424755440.

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 3 ways as a sum of consecutive naturals, for example, 2654642 + ... + 2654801.

Almost surely, 2^424755440 is an apocalyptic number.

424755440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424755440 is an abundant number, since it is smaller than the sum of its proper divisors (562801144).

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

424755440 is a wasteful number, since it uses less digits than its factorization.

424755440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5309456 (or 5309450 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 35.

The square root of 424755440 is about 20609.5958233052. The cubic root of 424755440 is about 751.7030572748.

The spelling of 424755440 in words is "four hundred twenty-four million, seven hundred fifty-five thousand, four hundred forty".