74744606220 has 48 divisors (see below), whose sum is σ = 210790567680. Its totient is φ = 19788497856.

The previous prime is 74744606219. The next prime is 74744606227. The reversal of 74744606220 is 2260644747.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (74744606227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4472752 + ... + 4489431.

It is an arithmetic number, because the mean of its divisors is an integer number (4391470160).

Almost surely, 2^74744606220 is an apocalyptic number.

It is an amenable number.

74744606220 is an abundant number, since it is smaller than the sum of its proper divisors (136045961460).

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

74744606220 is a wasteful number, since it uses less digits than its factorization.

74744606220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8962334 (or 8962332 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 42.

The spelling of 74744606220 in words is "seventy-four billion, seven hundred forty-four million, six hundred six thousand, two hundred twenty".