506444994 has 64 divisors (see below), whose sum is σ = 1299991680. Its totient is φ = 144437760.

The previous prime is 506444993. The next prime is 506445029. The reversal of 506444994 is 499444605.

It is not an unprimeable number, because it can be changed into a prime (506444993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14979 + ... + 35174.

It is an arithmetic number, because the mean of its divisors is an integer number (20312370).

Almost surely, 2^506444994 is an apocalyptic number.

506444994 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

506444994 is an abundant number, since it is smaller than the sum of its proper divisors (793546686).

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

506444994 is a wasteful number, since it uses less digits than its factorization.

506444994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50192 (or 50186 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 506444994 is about 22504.3327828221. The cubic root of 506444994 is about 797.0962406877.

The spelling of 506444994 in words is "five hundred six million, four hundred forty-four thousand, nine hundred ninety-four".