505858842 has 12 divisors (see below), whose sum is σ = 1096027530. Its totient is φ = 168619608.

The previous prime is 505858813. The next prime is 505858889. The reversal of 505858842 is 248858505.

It can be written as a sum of positive squares in only one way, i.e., 495107001 + 10751841 = 22251^2 + 3279^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14051617 + ... + 14051652.

Almost surely, 2^505858842 is an apocalyptic number.

505858842 is an abundant number, since it is smaller than the sum of its proper divisors (590168688).

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

505858842 is a wasteful number, since it uses less digits than its factorization.

505858842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28103277 (or 28103274 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 45.

The square root of 505858842 is about 22491.3059202884. The cubic root of 505858842 is about 796.7886061448.

The spelling of 505858842 in words is "five hundred five million, eight hundred fifty-eight thousand, eight hundred forty-two".