378831486 has 32 divisors (see below), whose sum is σ = 829086336. Its totient is φ = 114444000.

The previous prime is 378831461. The next prime is 378831487. The reversal of 378831486 is 684138873.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378831487) 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, 13176 + ... + 30516.

It is an arithmetic number, because the mean of its divisors is an integer number (25908948).

Almost surely, 2^378831486 is an apocalyptic number.

378831486 is an abundant number, since it is smaller than the sum of its proper divisors (450254850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

378831486 is a wasteful number, since it uses less digits than its factorization.

378831486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17688.

The product of its digits is 774144, while the sum is 48.

The square root of 378831486 is about 19463.5938613608. The cubic root of 378831486 is about 723.5724496085.

The spelling of 378831486 in words is "three hundred seventy-eight million, eight hundred thirty-one thousand, four hundred eighty-six".