396740522 has 8 divisors (see below), whose sum is σ = 595515456. Its totient is φ = 198235372.

The previous prime is 396740521. The next prime is 396740527. The reversal of 396740522 is 225047693.

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 (396740521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63728 + ... + 69675.

It is an arithmetic number, because the mean of its divisors is an integer number (74439432).

Almost surely, 2^396740522 is an apocalyptic number.

396740522 is a deficient number, since it is larger than the sum of its proper divisors (198774934).

396740522 is a wasteful number, since it uses less digits than its factorization.

396740522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134892.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 396740522 is about 19918.3463671059. The cubic root of 396740522 is about 734.7995022867.

The spelling of 396740522 in words is "three hundred ninety-six million, seven hundred forty thousand, five hundred twenty-two".