378117740 has 288 divisors, whose sum is σ = 1148660352. Its totient is φ = 101376000.

The previous prime is 378117739. The next prime is 378117743. The reversal of 378117740 is 47711873.

It is a junction number, because it is equal to n+sod(n) for n = 378117694 and 378117703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378117743) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3743690 + ... + 3743790.

It is an arithmetic number, because the mean of its divisors is an integer number (3988404).

Almost surely, 2^378117740 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 378117740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (574330176).

378117740 is an abundant number, since it is smaller than the sum of its proper divisors (770542612).

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

378117740 is a wasteful number, since it uses less digits than its factorization.

378117740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 378117740 is about 19445.2498055438. The cubic root of 378117740 is about 723.1177429278.

The spelling of 378117740 in words is "three hundred seventy-eight million, one hundred seventeen thousand, seven hundred forty".