74203648 has 40 divisors (see below), whose sum is σ = 152308332. Its totient is φ = 36089856.

The previous prime is 74203637. The next prime is 74203709. The reversal of 74203648 is 84630247.

It can be written as a sum of positive squares in 2 ways, for example, as 63234304 + 10969344 = 7952^2 + 3312^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16986 + ... + 20902.

Almost surely, 2^74203648 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 74203648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76154166).

74203648 is an abundant number, since it is smaller than the sum of its proper divisors (78104684).

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

74203648 is an equidigital number, since it uses as much as digits as its factorization.

74203648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3972 (or 3956 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 74203648 is about 8614.1539340785. The cubic root of 74203648 is about 420.2184200272.

The spelling of 74203648 in words is "seventy-four million, two hundred three thousand, six hundred forty-eight".