404668378 has 8 divisors (see below), whose sum is σ = 627933780. Its totient is φ = 195357120.

The previous prime is 404668351. The next prime is 404668379. The reversal of 404668378 is 873866404.

It can be written as a sum of positive squares in 2 ways, for example, as 371063169 + 33605209 = 19263^2 + 5797^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (404668379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3488463 + ... + 3488578.

Almost surely, 2^404668378 is an apocalyptic number.

404668378 is a deficient number, since it is larger than the sum of its proper divisors (223265402).

404668378 is a wasteful number, since it uses less digits than its factorization.

404668378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6977072.

The product of its (nonzero) digits is 774144, while the sum is 46.

The square root of 404668378 is about 20116.3708953678. The cubic root of 404668378 is about 739.6616288409.

The spelling of 404668378 in words is "four hundred four million, six hundred sixty-eight thousand, three hundred seventy-eight".