378230831 has 4 divisors (see below), whose sum is σ = 412615464. Its totient is φ = 343846200.

The previous prime is 378230821. The next prime is 378230849. The reversal of 378230831 is 138032873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138032873 = 11 ⋅12548443.

It is a cyclic number.

It is not a de Polignac number, because 378230831 - 2⁶ = 378230767 is a prime.

It is a super-2 number, since 2×378230831² = 286117123037901122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378230791 and 378230800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378230821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17192300 + ... + 17192321.

It is an arithmetic number, because the mean of its divisors is an integer number (103153866).

Almost surely, 2^378230831 is an apocalyptic number.

378230831 is a deficient number, since it is larger than the sum of its proper divisors (34384633).

378230831 is a wasteful number, since it uses less digits than its factorization.

378230831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34384632.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 378230831 is about 19448.1575219865. The cubic root of 378230831 is about 723.1898280205.

The spelling of 378230831 in words is "three hundred seventy-eight million, two hundred thirty thousand, eight hundred thirty-one".