74068220 has 24 divisors (see below), whose sum is σ = 156449664. Its totient is φ = 29454656.

The previous prime is 74068199. The next prime is 74068273. The reversal of 74068220 is 2286047.

It is a super-2 number, since 2×74068220² = 10972202427936800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7244 + ... + 14163.

It is an arithmetic number, because the mean of its divisors is an integer number (6518736).

Almost surely, 2^74068220 is an apocalyptic number.

It is an amenable number.

74068220 is an abundant number, since it is smaller than the sum of its proper divisors (82381444).

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

74068220 is a wasteful number, since it uses less digits than its factorization.

74068220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21589 (or 21587 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 74068220 is about 8606.2895605481. The cubic root of 74068220 is about 419.9626195001.

The spelling of 74068220 in words is "seventy-four million, sixty-eight thousand, two hundred twenty".