378645670 has 16 divisors (see below), whose sum is σ = 733990320. Its totient is φ = 139807584.

The previous prime is 378645653. The next prime is 378645689. The reversal of 378645670 is 76546873.

It is a self number, because there is not a number n which added to its sum of digits gives 378645670.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1456200 + ... + 1456459.

It is an arithmetic number, because the mean of its divisors is an integer number (45874395).

Almost surely, 2^378645670 is an apocalyptic number.

378645670 is a deficient number, since it is larger than the sum of its proper divisors (355344650).

378645670 is a wasteful number, since it uses less digits than its factorization.

378645670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912679.

The product of its (nonzero) digits is 846720, while the sum is 46.

The square root of 378645670 is about 19458.8198511626. The cubic root of 378645670 is about 723.4541267025.

It can be divided in two parts, 37864 and 5670, that added together give a palindrome (43534).

The spelling of 378645670 in words is "three hundred seventy-eight million, six hundred forty-five thousand, six hundred seventy".