505472040 has 96 divisors (see below), whose sum is σ = 1646330400. Its totient is φ = 134501760.

The previous prime is 505472039. The next prime is 505472041. The reversal of 505472040 is 40274505.

It is an interprime number because it is at equal distance from previous prime (505472039) and next prime (505472041).

It is a junction number, because it is equal to n+sod(n) for n = 505471995 and 505472013.

It is not an unprimeable number, because it can be changed into a prime (505472041) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 204331 + ... + 206789.

It is an arithmetic number, because the mean of its divisors is an integer number (17149275).

Almost surely, 2^505472040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505472040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (823165200).

505472040 is an abundant number, since it is smaller than the sum of its proper divisors (1140858360).

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

505472040 is a wasteful number, since it uses less digits than its factorization.

505472040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3047 (or 3040 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 505472040 is about 22482.7053532265. The cubic root of 505472040 is about 796.5854677799.

The spelling of 505472040 in words is "five hundred five million, four hundred seventy-two thousand, forty".