396219605 has 8 divisors (see below), whose sum is σ = 491859000. Its totient is φ = 306045376.

The previous prime is 396219589. The next prime is 396219611. The reversal of 396219605 is 506912693.

It can be written as a sum of positive squares in 4 ways, for example, as 9821956 + 386397649 = 3134^2 + 19657^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 396219605 - 2⁴ = 396219589 is a prime.

It is a Curzon number.

It is a congruent number.

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, 1366130 + ... + 1366419.

It is an arithmetic number, because the mean of its divisors is an integer number (61482375).

Almost surely, 2^396219605 is an apocalyptic number.

It is an amenable number.

396219605 is a deficient number, since it is larger than the sum of its proper divisors (95639395).

396219605 is a wasteful number, since it uses less digits than its factorization.

396219605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732583.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 396219605 is about 19905.2657605971. The cubic root of 396219605 is about 734.4777662251.

The spelling of 396219605 in words is "three hundred ninety-six million, two hundred nineteen thousand, six hundred five".