378313859 has 12 divisors (see below), whose sum is σ = 480087288. Its totient is φ = 294789600.

The previous prime is 378313849. The next prime is 378313861. The reversal of 378313859 is 958313873.

It is a de Polignac number, because none of the positive numbers 2^k-378313859 is a prime.

It is a super-2 number, since 2×378313859² = 286242751822943762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378313849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 350402 + ... + 351479.

It is an arithmetic number, because the mean of its divisors is an integer number (40007274).

Almost surely, 2^378313859 is an apocalyptic number.

378313859 is a deficient number, since it is larger than the sum of its proper divisors (101773429).

378313859 is a wasteful number, since it uses less digits than its factorization.

378313859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701906 (or 701899 counting only the distinct ones).

The product of its digits is 544320, while the sum is 47.

The square root of 378313859 is about 19450.2920029495. The cubic root of 378313859 is about 723.2427415740.

The spelling of 378313859 in words is "three hundred seventy-eight million, three hundred thirteen thousand, eight hundred fifty-nine".