636429396 has 24 divisors (see below), whose sum is σ = 1563160480. Its totient is φ = 200977632.

The previous prime is 636429379. The next prime is 636429407. The reversal of 636429396 is 693924636.

636429396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 1395451 + ... + 1395906.

Almost surely, 2^636429396 is an apocalyptic number.

It is an amenable number.

636429396 is an abundant number, since it is smaller than the sum of its proper divisors (926731084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

636429396 is a wasteful number, since it uses less digits than its factorization.

636429396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791383 (or 2791381 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 48.

The square root of 636429396 is about 25227.5523188438. The cubic root of 636429396 is about 860.1682544423.

The spelling of 636429396 in words is "six hundred thirty-six million, four hundred twenty-nine thousand, three hundred ninety-six".