378231 has 24 divisors (see below), whose sum is σ = 612864. Its totient is φ = 206640.

The previous prime is 378229. The next prime is 378239. The reversal of 378231 is 132873.

378231 = T₇₈ + T₇₉ + ... + T₁₃₉.

It is not a de Polignac number, because 378231 - 2¹ = 378229 is a prime.

It is a super-2 number, since 2×378231² = 286117378722, which contains 22 as substring.

378231 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 378231.

It is not an unprimeable number, because it can be changed into a prime (378239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4516 + ... + 4598.

It is an arithmetic number, because the mean of its divisors is an integer number (25536).

2³⁷⁸²³¹ is an apocalyptic number.

378231 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

378231 is a deficient number, since it is larger than the sum of its proper divisors (234633).

378231 is a wasteful number, since it uses less digits than its factorization.

378231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 124 counting only the distinct ones).

The product of its digits is 1008, while the sum is 24.

The square root of 378231 is about 615.0048780294. The cubic root of 378231 is about 72.3189935732.

The spelling of 378231 in words is "three hundred seventy-eight thousand, two hundred thirty-one".