378601780 has 12 divisors (see below), whose sum is σ = 795063780. Its totient is φ = 151440704.

The previous prime is 378601763. The next prime is 378601793. The reversal of 378601780 is 87106873.

378601780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 208455844 + 170145936 = 14438^2 + 13044^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9465025 + ... + 9465064.

It is an arithmetic number, because the mean of its divisors is an integer number (66255315).

Almost surely, 2^378601780 is an apocalyptic number.

It is an amenable number.

378601780 is an abundant number, since it is smaller than the sum of its proper divisors (416462000).

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

378601780 is a wasteful number, since it uses less digits than its factorization.

378601780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18930098 (or 18930096 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 378601780 is about 19457.6920522450. The cubic root of 378601780 is about 723.4261730147.

The spelling of 378601780 in words is "three hundred seventy-eight million, six hundred one thousand, seven hundred eighty".