68624002 has 16 divisors (see below), whose sum is σ = 109996920. Its totient is φ = 31995648.

The previous prime is 68623993. The next prime is 68624009. The reversal of 68624002 is 20042686.

It can be written as a sum of positive squares in 4 ways, for example, as 64176121 + 4447881 = 8011^2 + 2109^2 .

It is not an unprimeable number, because it can be changed into a prime (68624009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5553 + ... + 12964.

Almost surely, 2^68624002 is an apocalyptic number.

68624002 is a deficient number, since it is larger than the sum of its proper divisors (41372918).

68624002 is a wasteful number, since it uses less digits than its factorization.

68624002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18645.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 68624002 is about 8283.9605262217. The cubic root of 68624002 is about 409.4102208261.

Adding to 68624002 its reverse (20042686), we get a palindrome (88666688).

The spelling of 68624002 in words is "sixty-eight million, six hundred twenty-four thousand, two".