68440430 has 8 divisors (see below), whose sum is σ = 123192792. Its totient is φ = 27376168.

The previous prime is 68440423. The next prime is 68440459. The reversal of 68440430 is 3404486.

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

It is a junction number, because it is equal to n+sod(n) for n = 68440393 and 68440402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3422012 + ... + 3422031.

It is an arithmetic number, because the mean of its divisors is an integer number (15399099).

Almost surely, 2^68440430 is an apocalyptic number.

68440430 is a deficient number, since it is larger than the sum of its proper divisors (54752362).

68440430 is a wasteful number, since it uses less digits than its factorization.

68440430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6844050.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 68440430 is about 8272.8731405721. The cubic root of 68440430 is about 409.0448318175.

It can be divided in two parts, 684 and 40430, that added together give a palindrome (41114).

The spelling of 68440430 in words is "sixty-eight million, four hundred forty thousand, four hundred thirty".