507778244 has 12 divisors (see below), whose sum is σ = 896765100. Its totient is φ = 251559648.

The previous prime is 507778231. The next prime is 507778247. The reversal of 507778244 is 442877705.

It can be written as a sum of positive squares in 2 ways, for example, as 274299844 + 233478400 = 16562^2 + 15280^2 .

It is a junction number, because it is equal to n+sod(n) for n = 507778195 and 507778204.

It is not an unprimeable number, because it can be changed into a prime (507778247) 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 3 ways as a sum of consecutive naturals, for example, 581879 + ... + 582750.

It is an arithmetic number, because the mean of its divisors is an integer number (74730425).

Almost surely, 2^507778244 is an apocalyptic number.

It is an amenable number.

507778244 is a deficient number, since it is larger than the sum of its proper divisors (388986856).

507778244 is a wasteful number, since it uses less digits than its factorization.

507778244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164742 (or 1164740 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 44.

The square root of 507778244 is about 22533.9353864344. The cubic root of 507778244 is about 797.7950973383.

The spelling of 507778244 in words is "five hundred seven million, seven hundred seventy-eight thousand, two hundred forty-four".