378659286 has 80 divisors (see below), whose sum is σ = 871635600. Its totient is φ = 122824512.

The previous prime is 378659273. The next prime is 378659287. The reversal of 378659286 is 682956873.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378659287) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1653420 + ... + 1653648.

It is an arithmetic number, because the mean of its divisors is an integer number (10895445).

Almost surely, 2^378659286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378659286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435817800).

378659286 is an abundant number, since it is smaller than the sum of its proper divisors (492976314).

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

378659286 is a wasteful number, since it uses less digits than its factorization.

378659286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 466 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 378659286 is about 19459.1697150726. The cubic root of 378659286 is about 723.4627983394.

The spelling of 378659286 in words is "three hundred seventy-eight million, six hundred fifty-nine thousand, two hundred eighty-six".