74043405 has 12 divisors (see below), whose sum is σ = 128341980. Its totient is φ = 39489792.

The previous prime is 74043383. The next prime is 74043421. The reversal of 74043405 is 50434047.

It can be written as a sum of positive squares in 2 ways, for example, as 31036041 + 43007364 = 5571^2 + 6558^2 .

It is not a de Polignac number, because 74043405 - 2⁸ = 74043149 is a prime.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 822660 + ... + 822749.

It is an arithmetic number, because the mean of its divisors is an integer number (10695165).

Almost surely, 2^74043405 is an apocalyptic number.

It is an amenable number.

74043405 is a deficient number, since it is larger than the sum of its proper divisors (54298575).

74043405 is a wasteful number, since it uses less digits than its factorization.

74043405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645420 (or 1645417 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 74043405 is about 8604.8477615818. The cubic root of 74043405 is about 419.9157143792.

The spelling of 74043405 in words is "seventy-four million, forty-three thousand, four hundred five".