68442299 has 4 divisors (see below), whose sum is σ = 69070320. Its totient is φ = 67814280.

The previous prime is 68442287. The next prime is 68442307. The reversal of 68442299 is 99224486.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68442299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68442499) 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, 313847 + ... + 314064.

It is an arithmetic number, because the mean of its divisors is an integer number (17267580).

Almost surely, 2^68442299 is an apocalyptic number.

68442299 is a deficient number, since it is larger than the sum of its proper divisors (628021).

68442299 is a wasteful number, since it uses less digits than its factorization.

68442299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628020.

The product of its digits is 248832, while the sum is 44.

The square root of 68442299 is about 8272.9860993477. The cubic root of 68442299 is about 409.0485552396.

The spelling of 68442299 in words is "sixty-eight million, four hundred forty-two thousand, two hundred ninety-nine".