538705394 has 8 divisors (see below), whose sum is σ = 808951728. Its totient is φ = 269054820.

The previous prime is 538705373. The next prime is 538705403. The reversal of 538705394 is 493507835.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 146672 + ... + 150299.

It is an arithmetic number, because the mean of its divisors is an integer number (101118966).

Almost surely, 2^538705394 is an apocalyptic number.

538705394 is a deficient number, since it is larger than the sum of its proper divisors (270246334).

538705394 is a wasteful number, since it uses less digits than its factorization.

538705394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297880.

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 538705394 is about 23210.0278758988. The cubic root of 538705394 is about 813.6740047310.

The spelling of 538705394 in words is "five hundred thirty-eight million, seven hundred five thousand, three hundred ninety-four".