74043858 has 32 divisors (see below), whose sum is σ = 169721856. Its totient is φ = 21095568.

The previous prime is 74043839. The next prime is 74043859. The reversal of 74043858 is 85834047.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (74043859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13785 + ... + 18387.

It is an arithmetic number, because the mean of its divisors is an integer number (5303808).

Almost surely, 2^74043858 is an apocalyptic number.

74043858 is an abundant number, since it is smaller than the sum of its proper divisors (95677998).

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

74043858 is a wasteful number, since it uses less digits than its factorization.

74043858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4998.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 74043858 is about 8604.8740839131. The cubic root of 74043858 is about 419.9165707302.

The spelling of 74043858 in words is "seventy-four million, forty-three thousand, eight hundred fifty-eight".