74223403280 has 40 divisors (see below), whose sum is σ = 185843985432. Its totient is φ = 27405563904.

The previous prime is 74223403229. The next prime is 74223403297. The reversal of 74223403280 is 8230432247.

It can be written as a sum of positive squares in 4 ways, for example, as 4428103936 + 69795299344 = 66544^2 + 264188^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×74223403280² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74223403280.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35683289 + ... + 35685368.

Almost surely, 2^74223403280 is an apocalyptic number.

It is an amenable number.

74223403280 is an abundant number, since it is smaller than the sum of its proper divisors (111620582152).

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

74223403280 is a wasteful number, since it uses less digits than its factorization.

74223403280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71368683 (or 71368677 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 35.

The spelling of 74223403280 in words is "seventy-four billion, two hundred twenty-three million, four hundred three thousand, two hundred eighty".