378336660 has 96 divisors (see below), whose sum is σ = 1190488320. Its totient is φ = 89075712.

The previous prime is 378336593. The next prime is 378336667. The reversal of 378336660 is 66633873.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378336667) 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, 7396 + ... + 28484.

It is an arithmetic number, because the mean of its divisors is an integer number (12400920).

Almost surely, 2^378336660 is an apocalyptic number.

378336660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378336660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (595244160).

378336660 is an abundant number, since it is smaller than the sum of its proper divisors (812151660).

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

378336660 is a wasteful number, since it uses less digits than its factorization.

378336660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21137 (or 21135 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 42.

The square root of 378336660 is about 19450.8781292774. The cubic root of 378336660 is about 723.2572712439.

The spelling of 378336660 in words is "three hundred seventy-eight million, three hundred thirty-six thousand, six hundred sixty".