636300442 has 4 divisors (see below), whose sum is σ = 954450666. Its totient is φ = 318150220.

The previous prime is 636300421. The next prime is 636300461. The reversal of 636300442 is 244003636.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 636098841 + 201601 = 25221^2 + 449^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 636300442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159075109 + ... + 159075112.

Almost surely, 2^636300442 is an apocalyptic number.

636300442 is a deficient number, since it is larger than the sum of its proper divisors (318150224).

636300442 is a wasteful number, since it uses less digits than its factorization.

636300442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318150223.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 636300442 is about 25224.9963726459. The cubic root of 636300442 is about 860.1101544497.

The spelling of 636300442 in words is "six hundred thirty-six million, three hundred thousand, four hundred forty-two".