74420000 has 90 divisors (see below), whose sum is σ = 186134949. Its totient is φ = 29280000.

The previous prime is 74419997. The next prime is 74420011. The reversal of 74420000 is 2447.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 8 ways, for example, as 44782864 + 29637136 = 6692^2 + 5444^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6100.

It is a Duffinian number.

It is a nialpdrome in base 10.

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 14 ways as a sum of consecutive naturals, for example, 1219970 + ... + 1220030.

Almost surely, 2^74420000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74420000

74420000 is an abundant number, since it is smaller than the sum of its proper divisors (111714949).

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

74420000 is an frugal number, since it uses more digits than its factorization.

74420000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 68 counting only the distinct ones).

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

The square root of 74420000 is about 8626.7027304759. The cubic root of 74420000 is about 420.6264272792.

Adding to 74420000 its reverse (2447), we get a palindrome (74422447).

The spelling of 74420000 in words is "seventy-four million, four hundred twenty thousand".