635364434 has 4 divisors (see below), whose sum is σ = 953046654. Its totient is φ = 317682216.

The previous prime is 635364421. The next prime is 635364439. The reversal of 635364434 is 434463536.

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., 474150625 + 161213809 = 21775^2 + 12697^2 .

It is not an unprimeable number, because it can be changed into a prime (635364439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158841107 + ... + 158841110.

Almost surely, 2^635364434 is an apocalyptic number.

635364434 is a deficient number, since it is larger than the sum of its proper divisors (317682220).

635364434 is a wasteful number, since it uses less digits than its factorization.

635364434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317682219.

The product of its digits is 311040, while the sum is 38.

The square root of 635364434 is about 25206.4363605806. The cubic root of 635364434 is about 859.6882022753.

The spelling of 635364434 in words is "six hundred thirty-five million, three hundred sixty-four thousand, four hundred thirty-four".