635628042 has 24 divisors (see below), whose sum is σ = 1573936416. Its totient is φ = 181607976.

The previous prime is 635628041. The next prime is 635628053. The reversal of 635628042 is 240826536.

It is a junction number, because it is equal to n+sod(n) for n = 635627988 and 635628006.

It is not an unprimeable number, because it can be changed into a prime (635628041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2522208 + ... + 2522459.

It is an arithmetic number, because the mean of its divisors is an integer number (65580684).

Almost surely, 2^635628042 is an apocalyptic number.

635628042 is an abundant number, since it is smaller than the sum of its proper divisors (938308374).

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

635628042 is a wasteful number, since it uses less digits than its factorization.

635628042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5044682 (or 5044679 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 635628042 is about 25211.6648002467. The cubic root of 635628042 is about 859.8070785934.

The spelling of 635628042 in words is "six hundred thirty-five million, six hundred twenty-eight thousand, forty-two".