68407426 has 4 divisors (see below), whose sum is σ = 102611142. Its totient is φ = 34203712.

The previous prime is 68407403. The next prime is 68407441. The reversal of 68407426 is 62470486.

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., 46308025 + 22099401 = 6805^2 + 4701^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17101855 + ... + 17101858.

Almost surely, 2^68407426 is an apocalyptic number.

68407426 is a deficient number, since it is larger than the sum of its proper divisors (34203716).

68407426 is a wasteful number, since it uses less digits than its factorization.

68407426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34203715.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 68407426 is about 8270.8781879556. The cubic root of 68407426 is about 408.9790700727.

The spelling of 68407426 in words is "sixty-eight million, four hundred seven thousand, four hundred twenty-six".