74204286 has 64 divisors (see below), whose sum is σ = 171134208. Its totient is φ = 21247488.

The previous prime is 74204227. The next prime is 74204287. The reversal of 74204286 is 68240247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74204287) 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 31 ways as a sum of consecutive naturals, for example, 141621 + ... + 142143.

It is an arithmetic number, because the mean of its divisors is an integer number (2673972).

Almost surely, 2^74204286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74204286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85567104).

74204286 is an abundant number, since it is smaller than the sum of its proper divisors (96929922).

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

74204286 is a wasteful number, since it uses less digits than its factorization.

74204286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 74204286 is about 8614.1909660745. The cubic root of 74204286 is about 420.2196243641.

The spelling of 74204286 in words is "seventy-four million, two hundred four thousand, two hundred eighty-six".