378340864 has 120 divisors (see below), whose sum is σ = 862069824. Its totient is φ = 165580800.

The previous prime is 378340843. The next prime is 378340877. The reversal of 378340864 is 468043873.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 378340864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1920414 + ... + 1920610.

Almost surely, 2^378340864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378340864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431034912).

378340864 is an abundant number, since it is smaller than the sum of its proper divisors (483728960).

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

378340864 is a wasteful number, since it uses less digits than its factorization.

378340864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 378340864 is about 19450.9861960776. The cubic root of 378340864 is about 723.2599501298.

The spelling of 378340864 in words is "three hundred seventy-eight million, three hundred forty thousand, eight hundred sixty-four".