378478233 has 24 divisors (see below), whose sum is σ = 657675200. Its totient is φ = 204889824.

The previous prime is 378478231. The next prime is 378478237. The reversal of 378478233 is 332874873.

378478233 is a `hidden beast` number, since 378 + 47 + 8 + 233 = 666.

It is not a de Polignac number, because 378478233 - 2¹ = 378478231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378478231) 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, 156898 + ... + 159291.

Almost surely, 2^378478233 is an apocalyptic number.

It is an amenable number.

378478233 is a deficient number, since it is larger than the sum of its proper divisors (279196967).

378478233 is a wasteful number, since it uses less digits than its factorization.

378478233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316221 (or 316218 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 378478233 is about 19454.5170333267. The cubic root of 378478233 is about 723.3474739155.

The spelling of 378478233 in words is "three hundred seventy-eight million, four hundred seventy-eight thousand, two hundred thirty-three".