68438398 has 24 divisors (see below), whose sum is σ = 119849112. Its totient is φ = 29224944.

The previous prime is 68438387. The next prime is 68438429. The reversal of 68438398 is 89383486.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29965 + ... + 32167.

It is an arithmetic number, because the mean of its divisors is an integer number (4993713).

Almost surely, 2^68438398 is an apocalyptic number.

68438398 is a deficient number, since it is larger than the sum of its proper divisors (51410714).

68438398 is a wasteful number, since it uses less digits than its factorization.

68438398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2536 (or 2529 counting only the distinct ones).

The product of its digits is 995328, while the sum is 49.

The square root of 68438398 is about 8272.7503286392. The cubic root of 68438398 is about 409.0407835898.

The spelling of 68438398 in words is "sixty-eight million, four hundred thirty-eight thousand, three hundred ninety-eight".