74832480 has 144 divisors (see below), whose sum is σ = 257768784. Its totient is φ = 19768320.

The previous prime is 74832479. The next prime is 74832497. The reversal of 74832480 is 8423847.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 225915 + ... + 226245.

It is an arithmetic number, because the mean of its divisors is an integer number (1790061).

Almost surely, 2^74832480 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 74832480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128884392).

74832480 is an abundant number, since it is smaller than the sum of its proper divisors (182936304).

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

74832480 is a wasteful number, since it uses less digits than its factorization.

74832480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 74832480 is about 8650.5768593776. The cubic root of 74832480 is about 421.4021167235.

The spelling of 74832480 in words is "seventy-four million, eight hundred thirty-two thousand, four hundred eighty".