508338394 has 8 divisors (see below), whose sum is σ = 770368788. Its totient is φ = 251548800.

The previous prime is 508338367. The next prime is 508338401. The reversal of 508338394 is 493833805.

It can be written as a sum of positive squares in 2 ways, for example, as 505665169 + 2673225 = 22487^2 + 1635^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 508338394.

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, 1309957 + ... + 1310344.

Almost surely, 2^508338394 is an apocalyptic number.

508338394 is a deficient number, since it is larger than the sum of its proper divisors (262030394).

508338394 is a wasteful number, since it uses less digits than its factorization.

508338394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620400.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 508338394 is about 22546.3609924085. The cubic root of 508338394 is about 798.0883491691.

The spelling of 508338394 in words is "five hundred eight million, three hundred thirty-eight thousand, three hundred ninety-four".