378763770 has 128 divisors (see below), whose sum is σ = 1182781440. Its totient is φ = 75271680.

The previous prime is 378763753. The next prime is 378763799. The reversal of 378763770 is 77367873.

It is a super-2 number, since 2×378763770² = 286923986929225800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49566 + ... + 56694.

It is an arithmetic number, because the mean of its divisors is an integer number (9240480).

Almost surely, 2^378763770 is an apocalyptic number.

378763770 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 378763770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (591390720).

378763770 is an abundant number, since it is smaller than the sum of its proper divisors (804017670).

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

378763770 is a wasteful number, since it uses less digits than its factorization.

378763770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7180.

The product of its (nonzero) digits is 1037232, while the sum is 48.

The square root of 378763770 is about 19461.8542282075. The cubic root of 378763770 is about 723.5293342626.

The spelling of 378763770 in words is "three hundred seventy-eight million, seven hundred sixty-three thousand, seven hundred seventy".