520444394 has 8 divisors (see below), whose sum is σ = 798821760. Its totient is φ = 254170476.

The previous prime is 520444381. The next prime is 520444403. The reversal of 520444394 is 493444025.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3025754 + ... + 3025925.

It is an arithmetic number, because the mean of its divisors is an integer number (99852720).

Almost surely, 2^520444394 is an apocalyptic number.

520444394 is a deficient number, since it is larger than the sum of its proper divisors (278377366).

520444394 is a wasteful number, since it uses less digits than its factorization.

520444394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6051724.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 520444394 is about 22813.2504040963. The cubic root of 520444394 is about 804.3741616724.

The spelling of 520444394 in words is "five hundred twenty million, four hundred forty-four thousand, three hundred ninety-four".