378332645 has 8 divisors (see below), whose sum is σ = 455884440. Its totient is φ = 301409280.

The previous prime is 378332641. The next prime is 378332651. The reversal of 378332645 is 546233873.

It can be written as a sum of positive squares in 4 ways, for example, as 105719524 + 272613121 = 10282^2 + 16511^2 .

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

It is not a de Polignac number, because 378332645 - 2² = 378332641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378332641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155780 + ... + 158189.

It is an arithmetic number, because the mean of its divisors is an integer number (56985555).

Almost surely, 2^378332645 is an apocalyptic number.

It is an amenable number.

378332645 is a deficient number, since it is larger than the sum of its proper divisors (77551795).

378332645 is a wasteful number, since it uses less digits than its factorization.

378332645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314215.

The product of its digits is 362880, while the sum is 41.

The square root of 378332645 is about 19450.7749202956. The cubic root of 378332645 is about 723.2547127746.

The spelling of 378332645 in words is "three hundred seventy-eight million, three hundred thirty-two thousand, six hundred forty-five".