74286285 has 16 divisors (see below), whose sum is σ = 119014656. Its totient is φ = 39567168.

The previous prime is 74286281. The next prime is 74286299. The reversal of 74286285 is 58268247.

It is a happy number.

It is not a de Polignac number, because 74286285 - 2² = 74286281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74286281) 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, 10332 + ... + 15978.

It is an arithmetic number, because the mean of its divisors is an integer number (7438416).

Almost surely, 2^74286285 is an apocalyptic number.

It is an amenable number.

74286285 is a deficient number, since it is larger than the sum of its proper divisors (44728371).

74286285 is a wasteful number, since it uses less digits than its factorization.

74286285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6532.

The product of its digits is 215040, while the sum is 42.

The square root of 74286285 is about 8618.9491818899. The cubic root of 74286285 is about 420.3743544398.

The spelling of 74286285 in words is "seventy-four million, two hundred eighty-six thousand, two hundred eighty-five".