74002220 has 24 divisors (see below), whose sum is σ = 159606384. Its totient is φ = 28800576.

The previous prime is 74002213. The next prime is 74002259. The reversal of 74002220 is 2220047.

74002220 is a modest number, since divided by 2220 gives 740 as remainder.

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, 49262 + ... + 50741.

It is an arithmetic number, because the mean of its divisors is an integer number (6650266).

Almost surely, 2^74002220 is an apocalyptic number.

It is an amenable number.

74002220 is an abundant number, since it is smaller than the sum of its proper divisors (85604164).

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

74002220 is a wasteful number, since it uses less digits than its factorization.

74002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100049 (or 100047 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 74002220 is about 8602.4543009539. The cubic root of 74002220 is about 419.8378436753.

Adding to 74002220 its reverse (2220047), we get a palindrome (76222267).

The spelling of 74002220 in words is "seventy-four million, two thousand, two hundred twenty".