520338394 has 8 divisors (see below), whose sum is σ = 780729588. Its totient is φ = 260095200.

The previous prime is 520338373. The next prime is 520338439. The reversal of 520338394 is 493833025.

It can be written as a sum of positive squares in 2 ways, for example, as 516971169 + 3367225 = 22737^2 + 1835^2 .

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, 27747 + ... + 42550.

Almost surely, 2^520338394 is an apocalyptic number.

520338394 is a deficient number, since it is larger than the sum of its proper divisors (260391194).

520338394 is a wasteful number, since it uses less digits than its factorization.

520338394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74000.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 520338394 is about 22810.9270745404. The cubic root of 520338394 is about 804.3195484410.

The spelling of 520338394 in words is "five hundred twenty million, three hundred thirty-eight thousand, three hundred ninety-four".