378392131 has 8 divisors (see below), whose sum is σ = 416976560. Its totient is φ = 341161632.

The previous prime is 378392129. The next prime is 378392141. The reversal of 378392131 is 131293873.

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

It is a cyclic number.

It is not a de Polignac number, because 378392131 - 2¹ = 378392129 is a prime.

It is a super-2 number, since 2×378392131² = 286361209605442322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (378392111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337896 + ... + 339013.

It is an arithmetic number, because the mean of its divisors is an integer number (52122070).

Almost surely, 2^378392131 is an apocalyptic number.

378392131 is a deficient number, since it is larger than the sum of its proper divisors (38584429).

378392131 is a wasteful number, since it uses less digits than its factorization.

378392131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676965.

The product of its digits is 27216, while the sum is 37.

The square root of 378392131 is about 19452.3040023541. The cubic root of 378392131 is about 723.2926170507.

The spelling of 378392131 in words is "three hundred seventy-eight million, three hundred ninety-two thousand, one hundred thirty-one".