635649476 has 24 divisors (see below), whose sum is σ = 1386872256. Its totient is φ = 247655520.

The previous prime is 635649473. The next prime is 635649491. The reversal of 635649476 is 674946536.

It is not an unprimeable number, because it can be changed into a prime (635649473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1031591 + ... + 1032206.

It is an arithmetic number, because the mean of its divisors is an integer number (57786344).

Almost surely, 2^635649476 is an apocalyptic number.

It is an amenable number.

635649476 is an abundant number, since it is smaller than the sum of its proper divisors (751222780).

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

635649476 is a wasteful number, since it uses less digits than its factorization.

635649476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063819 (or 2063817 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 50.

The square root of 635649476 is about 25212.0898776757. The cubic root of 635649476 is about 859.8167429970.

The spelling of 635649476 in words is "six hundred thirty-five million, six hundred forty-nine thousand, four hundred seventy-six".