74194405 has 16 divisors (see below), whose sum is σ = 90765360. Its totient is φ = 58212352.

The previous prime is 74194403. The next prime is 74194429. The reversal of 74194405 is 50449147.

It can be written as a sum of positive squares in 8 ways, for example, as 5536609 + 68657796 = 2353^2 + 8286^2 .

It is a cyclic number.

It is not a de Polignac number, because 74194405 - 2¹ = 74194403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74194403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60357 + ... + 61573.

It is an arithmetic number, because the mean of its divisors is an integer number (5672835).

Almost surely, 2^74194405 is an apocalyptic number.

It is an amenable number.

74194405 is a deficient number, since it is larger than the sum of its proper divisors (16570955).

74194405 is a wasteful number, since it uses less digits than its factorization.

74194405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 74194405 is about 8613.6174166258. The cubic root of 74194405 is about 420.2009714684.

The spelling of 74194405 in words is "seventy-four million, one hundred ninety-four thousand, four hundred five".