504995440 has 40 divisors (see below), whose sum is σ = 1201427568. Its totient is φ = 197299200.

The previous prime is 504995423. The next prime is 504995453. The reversal of 504995440 is 44599405.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 504995393 and 504995402.

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, 69961 + ... + 76840.

Almost surely, 2^504995440 is an apocalyptic number.

It is an amenable number.

504995440 is an abundant number, since it is smaller than the sum of its proper divisors (696432128).

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

504995440 is a wasteful number, since it uses less digits than its factorization.

504995440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146857 (or 146851 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 504995440 is about 22472.1035953468. The cubic root of 504995440 is about 796.3350272749.

It can be divided in two parts, 5049 and 95440, that added together give a square (100489 = 317²).

The spelling of 504995440 in words is "five hundred four million, nine hundred ninety-five thousand, four hundred forty".