68940634 has 16 divisors (see below), whose sum is σ = 120699648. Its totient is φ = 28917072.

The previous prime is 68940617. The next prime is 68940643. The reversal of 68940634 is 43604986.

It is a super-2 number, since 2×68940634² = 9505622032643912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51729 + ... + 53044.

It is an arithmetic number, because the mean of its divisors is an integer number (7543728).

Almost surely, 2^68940634 is an apocalyptic number.

68940634 is a deficient number, since it is larger than the sum of its proper divisors (51759014).

68940634 is a wasteful number, since it uses less digits than its factorization.

68940634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104829.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 68940634 is about 8303.0496806896. The cubic root of 68940634 is about 410.0389294782.

The spelling of 68940634 in words is "sixty-eight million, nine hundred forty thousand, six hundred thirty-four".