68420038 has 8 divisors (see below), whose sum is σ = 105940800. Its totient is φ = 33106440.

The previous prime is 68420003. The next prime is 68420039. The reversal of 68420038 is 83002486.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 68419991 and 68420009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68420039) 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, 551713 + ... + 551836.

It is an arithmetic number, because the mean of its divisors is an integer number (13242600).

Almost surely, 2^68420038 is an apocalyptic number.

68420038 is a deficient number, since it is larger than the sum of its proper divisors (37520762).

68420038 is a wasteful number, since it uses less digits than its factorization.

68420038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103582.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 68420038 is about 8271.6405869694. The cubic root of 68420038 is about 409.0042024664.

The spelling of 68420038 in words is "sixty-eight million, four hundred twenty thousand, thirty-eight".