635540396 has 12 divisors (see below), whose sum is σ = 1119280848. Its totient is φ = 315745872.

The previous prime is 635540371. The next prime is 635540407. The reversal of 635540396 is 693045536.

635540396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 505376 + ... + 506631.

It is an arithmetic number, because the mean of its divisors is an integer number (93273404).

Almost surely, 2^635540396 is an apocalyptic number.

It is an amenable number.

635540396 is a deficient number, since it is larger than the sum of its proper divisors (483740452).

635540396 is a wasteful number, since it uses less digits than its factorization.

635540396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012168 (or 1012166 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 41.

The square root of 635540396 is about 25209.9265369814. The cubic root of 635540396 is about 859.7675575160.

The spelling of 635540396 in words is "six hundred thirty-five million, five hundred forty thousand, three hundred ninety-six".