378743640 has 64 divisors (see below), whose sum is σ = 1239528960. Its totient is φ = 91816320.

The previous prime is 378743627. The next prime is 378743653. The reversal of 378743640 is 46347873.

378743640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (378743627) and next prime (378743653).

It is a junction number, because it is equal to n+sod(n) for n = 378743592 and 378743601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142144 + ... + 144783.

It is an arithmetic number, because the mean of its divisors is an integer number (19367640).

Almost surely, 2^378743640 is an apocalyptic number.

378743640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

378743640 is an abundant number, since it is smaller than the sum of its proper divisors (860785320).

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

378743640 is a wasteful number, since it uses less digits than its factorization.

378743640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286952 (or 286948 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 42.

The square root of 378743640 is about 19461.3370558140. The cubic root of 378743640 is about 723.5165163317.

It can be divided in two parts, 37874 and 3640, that added together give a palindrome (41514).

The spelling of 378743640 in words is "three hundred seventy-eight million, seven hundred forty-three thousand, six hundred forty".