378801826 has 16 divisors (see below), whose sum is σ = 621944568. Its totient is φ = 171964800.

The previous prime is 378801751. The next prime is 378801851. The reversal of 378801826 is 628108873.

It is a happy number.

378801826 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 4 ways, for example, as 79477225 + 299324601 = 8915^2 + 17301^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117835 + ... + 121006.

Almost surely, 2^378801826 is an apocalyptic number.

378801826 is a deficient number, since it is larger than the sum of its proper divisors (243142742).

378801826 is a wasteful number, since it uses less digits than its factorization.

378801826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238917.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 378801826 is about 19462.8319111069. The cubic root of 378801826 is about 723.5535654698.

The spelling of 378801826 in words is "three hundred seventy-eight million, eight hundred one thousand, eight hundred twenty-six".