396740566 has 8 divisors (see below), whose sum is σ = 611195040. Its totient is φ = 193008888.

The previous prime is 396740537. The next prime is 396740587. The reversal of 396740566 is 665047693.

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

It is a congruent number.

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, 2680606 + ... + 2680753.

It is an arithmetic number, because the mean of its divisors is an integer number (76399380).

Almost surely, 2^396740566 is an apocalyptic number.

396740566 is a deficient number, since it is larger than the sum of its proper divisors (214454474).

396740566 is a wasteful number, since it uses less digits than its factorization.

396740566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5361398.

The product of its (nonzero) digits is 816480, while the sum is 46.

The square root of 396740566 is about 19918.3474716152. The cubic root of 396740566 is about 734.7995294507.

The spelling of 396740566 in words is "three hundred ninety-six million, seven hundred forty thousand, five hundred sixty-six".