396221730515 has 8 divisors (see below), whose sum is σ = 512040390288. Its totient is φ = 292594508640.

The previous prime is 396221730469. The next prime is 396221730521. The reversal of 396221730515 is 515037122693.

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

It is not a de Polignac number, because 396221730515 - 2¹⁸ = 396221468371 is a prime.

It is a Duffinian 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, 3047859401 + ... + 3047859530.

It is an arithmetic number, because the mean of its divisors is an integer number (64005048786).

Almost surely, 2^396221730515 is an apocalyptic number.

396221730515 is a deficient number, since it is larger than the sum of its proper divisors (115818659773).

396221730515 is a wasteful number, since it uses less digits than its factorization.

396221730515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6095718949.

The product of its (nonzero) digits is 340200, while the sum is 44.

The spelling of 396221730515 in words is "three hundred ninety-six billion, two hundred twenty-one million, seven hundred thirty thousand, five hundred fifteen".