378312945 has 32 divisors (see below), whose sum is σ = 625968000. Its totient is φ = 194972160.

The previous prime is 378312943. The next prime is 378312953. The reversal of 378312945 is 549213873.

It is not a de Polignac number, because 378312945 - 2¹ = 378312943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 378312897 and 378312906.

It is not an unprimeable number, because it can be changed into a prime (378312943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62931 + ... + 68679.

It is an arithmetic number, because the mean of its divisors is an integer number (19561500).

Almost surely, 2^378312945 is an apocalyptic number.

It is an amenable number.

378312945 is a deficient number, since it is larger than the sum of its proper divisors (247655055).

378312945 is a wasteful number, since it uses less digits than its factorization.

378312945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5905.

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

The square root of 378312945 is about 19450.2685071441. The cubic root of 378312945 is about 723.2421591260.

The spelling of 378312945 in words is "three hundred seventy-eight million, three hundred twelve thousand, nine hundred forty-five".