396244689 has 16 divisors (see below), whose sum is σ = 533267328. Its totient is φ = 261700992.

The previous prime is 396244663. The next prime is 396244691. The reversal of 396244689 is 986442693.

It is not a de Polignac number, because 396244689 - 2⁷ = 396244561 is a prime.

It is a super-3 number, since 3×396244689³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (396244609) 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 15 ways as a sum of consecutive naturals, for example, 396939 + ... + 397935.

It is an arithmetic number, because the mean of its divisors is an integer number (33329208).

Almost surely, 2^396244689 is an apocalyptic number.

It is an amenable number.

396244689 is a deficient number, since it is larger than the sum of its proper divisors (137022639).

396244689 is a wasteful number, since it uses less digits than its factorization.

396244689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104.

The product of its digits is 2239488, while the sum is 51.

The square root of 396244689 is about 19905.8958351540. The cubic root of 396244689 is about 734.4932654174.

The spelling of 396244689 in words is "three hundred ninety-six million, two hundred forty-four thousand, six hundred eighty-nine".