378251349 has 16 divisors (see below), whose sum is σ = 589788672. Its totient is φ = 211116528.

The previous prime is 378251311. The next prime is 378251369. The reversal of 378251349 is 943152873.

It is not a de Polignac number, because 378251349 - 2¹¹ = 378249301 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 378251349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378251369) 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, 208539 + ... + 210344.

It is an arithmetic number, because the mean of its divisors is an integer number (36861792).

Almost surely, 2^378251349 is an apocalyptic number.

It is an amenable number.

378251349 is a deficient number, since it is larger than the sum of its proper divisors (211537323).

378251349 is a wasteful number, since it uses less digits than its factorization.

378251349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418936.

The product of its digits is 181440, while the sum is 42.

The square root of 378251349 is about 19448.6850198156. The cubic root of 378251349 is about 723.2029048150.

The spelling of 378251349 in words is "three hundred seventy-eight million, two hundred fifty-one thousand, three hundred forty-nine".