378139316 has 18 divisors (see below), whose sum is σ = 665074242. Its totient is φ = 188122800.

The previous prime is 378139301. The next prime is 378139331. The reversal of 378139316 is 613931873.

It is an interprime number because it is at equal distance from previous prime (378139301) and next prime (378139331).

It can be written as a sum of positive squares in only one way, i.e., 243672100 + 134467216 = 15610^2 + 11596^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 197966 + ... + 199866.

It is an arithmetic number, because the mean of its divisors is an integer number (36948569).

Almost surely, 2^378139316 is an apocalyptic number.

It is an amenable number.

378139316 is a deficient number, since it is larger than the sum of its proper divisors (286934926).

378139316 is a wasteful number, since it uses less digits than its factorization.

378139316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351 (or 2126 counting only the distinct ones).

The product of its digits is 81648, while the sum is 41.

The square root of 378139316 is about 19445.8045860797. The cubic root of 378139316 is about 723.1314967492.

The spelling of 378139316 in words is "three hundred seventy-eight million, one hundred thirty-nine thousand, three hundred sixteen".