67990042 has 8 divisors (see below), whose sum is σ = 102596256. Its totient is φ = 33791292.

The previous prime is 67990033. The next prime is 67990057. The reversal of 67990042 is 24009976.

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

It is a super-2 number, since 2×67990042² = 9245291622323528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67989983 and 67990010.

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, 101448 + ... + 102115.

It is an arithmetic number, because the mean of its divisors is an integer number (12824532).

Almost surely, 2^67990042 is an apocalyptic number.

67990042 is a deficient number, since it is larger than the sum of its proper divisors (34606214).

67990042 is a wasteful number, since it uses less digits than its factorization.

67990042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203732.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 67990042 is about 8245.6074366902. The cubic root of 67990042 is about 408.1455851399.

The spelling of 67990042 in words is "sixty-seven million, nine hundred ninety thousand, forty-two".