68673438 has 24 divisors (see below), whose sum is σ = 157545648. Its totient is φ = 21544512.

The previous prime is 68673433. The next prime is 68673461. The reversal of 68673438 is 83437686.

It is a junction number, because it is equal to n+sod(n) for n = 68673393 and 68673402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68673431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111906 + ... + 112517.

It is an arithmetic number, because the mean of its divisors is an integer number (6564402).

Almost surely, 2^68673438 is an apocalyptic number.

68673438 is an abundant number, since it is smaller than the sum of its proper divisors (88872210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68673438 is a wasteful number, since it uses less digits than its factorization.

68673438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224448 (or 224445 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 68673438 is about 8286.9438274915. The cubic root of 68673438 is about 409.5085088152.

The spelling of 68673438 in words is "sixty-eight million, six hundred seventy-three thousand, four hundred thirty-eight".