506213994 has 32 divisors (see below), whose sum is σ = 1189427904. Its totient is φ = 141598080.

The previous prime is 506213989. The next prime is 506214013. The reversal of 506213994 is 499312605.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294139 + ... + 295854.

It is an arithmetic number, because the mean of its divisors is an integer number (37169622).

Almost surely, 2^506213994 is an apocalyptic number.

506213994 is an abundant number, since it is smaller than the sum of its proper divisors (683213910).

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

506213994 is a wasteful number, since it uses less digits than its factorization.

506213994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590022.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 506213994 is about 22499.1998524392. The cubic root of 506213994 is about 796.9750315825.

It can be divided in two parts, 50621 and 3994, that added together give a triangular number (54615 = T₃₃₀).

The spelling of 506213994 in words is "five hundred six million, two hundred thirteen thousand, nine hundred ninety-four".