231484378 has 32 divisors (see below), whose sum is σ = 366428160. Its totient is φ = 109540080.

The previous prime is 231484373. The next prime is 231484381. The reversal of 231484378 is 873484132.

It is a self number, because there is not a number n which added to its sum of digits gives 231484378.

It is not an unprimeable number, because it can be changed into a prime (231484373) 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, 817825 + ... + 818107.

It is an arithmetic number, because the mean of its divisors is an integer number (11450880).

Almost surely, 2^231484378 is an apocalyptic number.

231484378 is a deficient number, since it is larger than the sum of its proper divisors (134943782).

231484378 is a wasteful number, since it uses less digits than its factorization.

231484378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562.

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

The square root of 231484378 is about 15214.6106752687. The cubic root of 231484378 is about 614.0078107704.

The spelling of 231484378 in words is "two hundred thirty-one million, four hundred eighty-four thousand, three hundred seventy-eight".