505904970 has 64 divisors (see below), whose sum is σ = 1235710080. Its totient is φ = 132537600.

The previous prime is 505904939. The next prime is 505904977. The reversal of 505904970 is 79409505.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (505904977) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 427780 + ... + 428960.

It is an arithmetic number, because the mean of its divisors is an integer number (19307970).

Almost surely, 2^505904970 is an apocalyptic number.

505904970 is an abundant number, since it is smaller than the sum of its proper divisors (729805110).

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

505904970 is a wasteful number, since it uses less digits than its factorization.

505904970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431.

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 505904970 is about 22492.3313598213. The cubic root of 505904970 is about 796.8128244607.

The spelling of 505904970 in words is "five hundred five million, nine hundred four thousand, nine hundred seventy".