538312378 has 16 divisors (see below), whose sum is σ = 892140480. Its totient is φ = 242309056.

The previous prime is 538312363. The next prime is 538312381. The reversal of 538312378 is 873213835.

It is a self number, because there is not a number n which added to its sum of digits gives 538312378.

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, 343408 + ... + 344971.

It is an arithmetic number, because the mean of its divisors is an integer number (55758780).

Almost surely, 2^538312378 is an apocalyptic number.

538312378 is a deficient number, since it is larger than the sum of its proper divisors (353828102).

538312378 is a wasteful number, since it uses less digits than its factorization.

538312378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688421.

The product of its digits is 120960, while the sum is 40.

The square root of 538312378 is about 23201.5598182536. The cubic root of 538312378 is about 813.4760828827.

The spelling of 538312378 in words is "five hundred thirty-eight million, three hundred twelve thousand, three hundred seventy-eight".