74021013 has 16 divisors (see below), whose sum is σ = 119630400. Its totient is φ = 44861040.

The previous prime is 74021011. The next prime is 74021027. The reversal of 74021013 is 31012047.

It is not a de Polignac number, because 74021013 - 2¹ = 74021011 is a prime.

It is a super-2 number, since 2×74021013² = 10958220731092338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74021011) 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, 124318 + ... + 124911.

It is an arithmetic number, because the mean of its divisors is an integer number (7476900).

Almost surely, 2^74021013 is an apocalyptic number.

It is an amenable number.

74021013 is a deficient number, since it is larger than the sum of its proper divisors (45609387).

74021013 is a wasteful number, since it uses less digits than its factorization.

74021013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249249 (or 249243 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 74021013 is about 8603.5465361675. The cubic root of 74021013 is about 419.8733801984.

The spelling of 74021013 in words is "seventy-four million, twenty-one thousand, thirteen".