378448231 has 16 divisors (see below), whose sum is σ = 448914240. Its totient is φ = 312157440.

The previous prime is 378448223. The next prime is 378448241. The reversal of 378448231 is 132844873.

It is not a de Polignac number, because 378448231 - 2³ = 378448223 is a prime.

It is a super-2 number, since 2×378448231² = 286446127094058722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378448201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61411 + ... + 67291.

It is an arithmetic number, because the mean of its divisors is an integer number (28057140).

Almost surely, 2^378448231 is an apocalyptic number.

378448231 is a deficient number, since it is larger than the sum of its proper divisors (70466009).

378448231 is a wasteful number, since it uses less digits than its factorization.

378448231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6234.

The product of its digits is 129024, while the sum is 40.

The square root of 378448231 is about 19453.7459374795. The cubic root of 378448231 is about 723.3283601396.

The spelling of 378448231 in words is "three hundred seventy-eight million, four hundred forty-eight thousand, two hundred thirty-one".