505104240 has 40 divisors (see below), whose sum is σ = 1565823888. Its totient is φ = 134694400.

The previous prime is 505104239. The next prime is 505104241. The reversal of 505104240 is 42401505.

It is an interprime number because it is at equal distance from previous prime (505104239) and next prime (505104241).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505104241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052061 + ... + 1052540.

Almost surely, 2^505104240 is an apocalyptic number.

It is an amenable number.

505104240 is an abundant number, since it is smaller than the sum of its proper divisors (1060719648).

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

505104240 is a wasteful number, since it uses less digits than its factorization.

505104240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104617 (or 2104611 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 505104240 is about 22474.5242441303. The cubic root of 505104240 is about 796.3922126292.

Adding to 505104240 its reverse (42401505), we get a palindrome (547505745).

The spelling of 505104240 in words is "five hundred five million, one hundred four thousand, two hundred forty".