68491426 has 8 divisors (see below), whose sum is σ = 103427100. Its totient is φ = 34015728.

The previous prime is 68491421. The next prime is 68491439. The reversal of 68491426 is 62419486.

It can be written as a sum of positive squares in 2 ways, for example, as 62964225 + 5527201 = 7935^2 + 2351^2 .

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

It is not an unprimeable number, because it can be changed into a prime (68491421) 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, 114621 + ... + 115216.

Almost surely, 2^68491426 is an apocalyptic number.

68491426 is a deficient number, since it is larger than the sum of its proper divisors (34935674).

68491426 is a wasteful number, since it uses less digits than its factorization.

68491426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229988.

The product of its digits is 82944, while the sum is 40.

The square root of 68491426 is about 8275.9546881312. The cubic root of 68491426 is about 409.1464017591.

The spelling of 68491426 in words is "sixty-eight million, four hundred ninety-one thousand, four hundred twenty-six".