538068394 has 16 divisors (see below), whose sum is σ = 891736128. Its totient is φ = 242199232.

The previous prime is 538068337. The next prime is 538068431. The reversal of 538068394 is 493860835.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343252 + ... + 344815.

It is an arithmetic number, because the mean of its divisors is an integer number (55733508).

Almost surely, 2^538068394 is an apocalyptic number.

538068394 is a deficient number, since it is larger than the sum of its proper divisors (353667734).

538068394 is a wasteful number, since it uses less digits than its factorization.

538068394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688109.

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 538068394 is about 23196.3012999918. The cubic root of 538068394 is about 813.3531646976.

The spelling of 538068394 in words is "five hundred thirty-eight million, sixty-eight thousand, three hundred ninety-four".