74124285 has 16 divisors (see below), whose sum is σ = 123755904. Its totient is φ = 37813952.

The previous prime is 74124277. The next prime is 74124287. The reversal of 74124285 is 58242147.

It is a cyclic number.

It is not a de Polignac number, because 74124285 - 2³ = 74124277 is a prime.

It is a super-2 number, since 2×74124285² = 10988819253522450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74124287) 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, 107082 + ... + 107771.

It is an arithmetic number, because the mean of its divisors is an integer number (7734744).

Almost surely, 2^74124285 is an apocalyptic number.

It is an amenable number.

74124285 is a deficient number, since it is larger than the sum of its proper divisors (49631619).

74124285 is a wasteful number, since it uses less digits than its factorization.

74124285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214884.

The product of its digits is 17920, while the sum is 33.

The square root of 74124285 is about 8609.5461552860. The cubic root of 74124285 is about 420.0685545692.

The spelling of 74124285 in words is "seventy-four million, one hundred twenty-four thousand, two hundred eighty-five".