396653578 has 8 divisors (see below), whose sum is σ = 605064960. Its totient is φ = 194965260.

The previous prime is 396653573. The next prime is 396653627. The reversal of 396653578 is 875356693.

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 (396653573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1680618 + ... + 1680853.

It is an arithmetic number, because the mean of its divisors is an integer number (75633120).

Almost surely, 2^396653578 is an apocalyptic number.

396653578 is a deficient number, since it is larger than the sum of its proper divisors (208411382).

396653578 is a wasteful number, since it uses less digits than its factorization.

396653578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3361532.

The product of its digits is 4082400, while the sum is 52.

The square root of 396653578 is about 19916.1637370253. The cubic root of 396653578 is about 734.7458223021.

The spelling of 396653578 in words is "three hundred ninety-six million, six hundred fifty-three thousand, five hundred seventy-eight".