67400043 has 8 divisors (see below), whose sum is σ = 90574848. Its totient is φ = 44579304.

The previous prime is 67400033. The next prime is 67400063. The reversal of 67400043 is 34000476.

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

It is not a de Polignac number, because 67400043 - 2⁶ = 67399979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67399986 and 67400022.

It is not an unprimeable number, because it can be changed into a prime (67400033) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 88071 + ... + 88832.

It is an arithmetic number, because the mean of its divisors is an integer number (11321856).

Almost surely, 2^67400043 is an apocalyptic number.

67400043 is a deficient number, since it is larger than the sum of its proper divisors (23174805).

67400043 is a wasteful number, since it uses less digits than its factorization.

67400043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177033.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 67400043 is about 8209.7529195464. The cubic root of 67400043 is about 406.9615616877.

The spelling of 67400043 in words is "sixty-seven million, four hundred thousand, forty-three".