634276642 has 8 divisors (see below), whose sum is σ = 974620332. Its totient is φ = 309403200.

The previous prime is 634276631. The next prime is 634276649. The reversal of 634276642 is 246672436.

It can be written as a sum of positive squares in 2 ways, for example, as 565535961 + 68740681 = 23781^2 + 8291^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 634276595 and 634276604.

It is not an unprimeable number, because it can be changed into a prime (634276649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3867459 + ... + 3867622.

Almost surely, 2^634276642 is an apocalyptic number.

634276642 is a deficient number, since it is larger than the sum of its proper divisors (340343690).

634276642 is a wasteful number, since it uses less digits than its factorization.

634276642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7735124.

The product of its digits is 290304, while the sum is 40.

The square root of 634276642 is about 25184.8494535901. The cubic root of 634276642 is about 859.1973049275.

The spelling of 634276642 in words is "six hundred thirty-four million, two hundred seventy-six thousand, six hundred forty-two".