378638486 has 8 divisors (see below), whose sum is σ = 580042080. Its totient is φ = 185291128.

The previous prime is 378638461. The next prime is 378638503. The reversal of 378638486 is 684836873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2013941 + ... + 2014128.

It is an arithmetic number, because the mean of its divisors is an integer number (72505260).

Almost surely, 2^378638486 is an apocalyptic number.

378638486 is a deficient number, since it is larger than the sum of its proper divisors (201403594).

378638486 is a wasteful number, since it uses less digits than its factorization.

378638486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4028118.

The product of its digits is 4644864, while the sum is 53.

The square root of 378638486 is about 19458.6352553307. The cubic root of 378638486 is about 723.4495513367.

The spelling of 378638486 in words is "three hundred seventy-eight million, six hundred thirty-eight thousand, four hundred eighty-six".