396533636 has 24 divisors (see below), whose sum is σ = 735653016. Its totient is φ = 186375680.

The previous prime is 396533609. The next prime is 396533681. The reversal of 396533636 is 636335693.

It can be written as a sum of positive squares in 4 ways, for example, as 107329600 + 289204036 = 10360^2 + 17006^2 .

It is a super-3 number, since 3×396533636³ (a number of 27 digits) contains 333 as substring.

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, 60890 + ... + 67086.

It is an arithmetic number, because the mean of its divisors is an integer number (30652209).

Almost surely, 2^396533636 is an apocalyptic number.

It is an amenable number.

396533636 is a deficient number, since it is larger than the sum of its proper divisors (339119380).

396533636 is a wasteful number, since it uses less digits than its factorization.

396533636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7159 (or 7157 counting only the distinct ones).

The product of its digits is 787320, while the sum is 44.

The square root of 396533636 is about 19913.1523370862. The cubic root of 396533636 is about 734.6717561879.

The spelling of 396533636 in words is "three hundred ninety-six million, five hundred thirty-three thousand, six hundred thirty-six".