378298644 has 24 divisors (see below), whose sum is σ = 883581888. Its totient is φ = 125973120.

The previous prime is 378298643. The next prime is 378298663. The reversal of 378298644 is 446892873.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378298643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2917 + ... + 27660.

It is an arithmetic number, because the mean of its divisors is an integer number (36815912).

Almost surely, 2^378298644 is an apocalyptic number.

It is an amenable number.

378298644 is an abundant number, since it is smaller than the sum of its proper divisors (505283244).

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

378298644 is a wasteful number, since it uses less digits than its factorization.

378298644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31615 (or 31613 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 51.

The square root of 378298644 is about 19449.9008737834. The cubic root of 378298644 is about 723.2330456689.

The spelling of 378298644 in words is "three hundred seventy-eight million, two hundred ninety-eight thousand, six hundred forty-four".