74481480 has 96 divisors (see below), whose sum is σ = 243205560. Its totient is φ = 19768320.

The previous prime is 74481469. The next prime is 74481487. The reversal of 74481480 is 8418447.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 46539684 + 27941796 = 6822^2 + 5286^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (74481487) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 112350 + ... + 113010.

Almost surely, 2^74481480 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 74481480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121602780).

74481480 is an abundant number, since it is smaller than the sum of its proper divisors (168724080).

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

74481480 is a wasteful number, since it uses less digits than its factorization.

74481480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 74481480 is about 8630.2653493389. The cubic root of 74481480 is about 420.7422249806.

The spelling of 74481480 in words is "seventy-four million, four hundred eighty-one thousand, four hundred eighty".