505464646 has 8 divisors (see below), whose sum is σ = 776689704. Its totient is φ = 246568080.

The previous prime is 505464643. The next prime is 505464647. The reversal of 505464646 is 646464505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 505464599 and 505464608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505464643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3082020 + ... + 3082183.

It is an arithmetic number, because the mean of its divisors is an integer number (97086213).

Almost surely, 2^505464646 is an apocalyptic number.

505464646 is a deficient number, since it is larger than the sum of its proper divisors (271225058).

505464646 is a wasteful number, since it uses less digits than its factorization.

505464646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6164246.

The product of its (nonzero) digits is 345600, while the sum is 40.

The square root of 505464646 is about 22482.5409151190. The cubic root of 505464646 is about 796.5815836339.

The spelling of 505464646 in words is "five hundred five million, four hundred sixty-four thousand, six hundred forty-six".