396557378 has 8 divisors (see below), whose sum is σ = 679812672. Its totient is φ = 169953156.

The previous prime is 396557353. The next prime is 396557387. The reversal of 396557378 is 873755693.

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

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, 14162750 + ... + 14162777.

It is an arithmetic number, because the mean of its divisors is an integer number (84976584).

Almost surely, 2^396557378 is an apocalyptic number.

396557378 is a deficient number, since it is larger than the sum of its proper divisors (283255294).

396557378 is a wasteful number, since it uses less digits than its factorization.

396557378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28325536.

The product of its digits is 4762800, while the sum is 53.

The square root of 396557378 is about 19913.7484668256. The cubic root of 396557378 is about 734.6864184403.

The spelling of 396557378 in words is "three hundred ninety-six million, five hundred fifty-seven thousand, three hundred seventy-eight".