634613402 has 4 divisors (see below), whose sum is σ = 951920106. Its totient is φ = 317306700.

The previous prime is 634613359. The next prime is 634613423. The reversal of 634613402 is 204316436.

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., 532178761 + 102434641 = 23069^2 + 10121^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158653349 + ... + 158653352.

Almost surely, 2^634613402 is an apocalyptic number.

634613402 is a deficient number, since it is larger than the sum of its proper divisors (317306704).

634613402 is a wasteful number, since it uses less digits than its factorization.

634613402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317306703.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 634613402 is about 25191.5343319934. The cubic root of 634613402 is about 859.3493374807.

Adding to 634613402 its reverse (204316436), we get a palindrome (838929838).

The spelling of 634613402 in words is "six hundred thirty-four million, six hundred thirteen thousand, four hundred two".