74481792 has 192 divisors, whose sum is σ = 249614400. Its totient is φ = 19261440.

The previous prime is 74481779. The next prime is 74481821. The reversal of 74481792 is 29718447.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (42).

Its product of digits (112896) is a multiple of the sum of its prime divisors (252).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 325134 + ... + 325362.

It is an arithmetic number, because the mean of its divisors is an integer number (1300075).

Almost surely, 2^74481792 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 74481792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124807200).

74481792 is an abundant number, since it is smaller than the sum of its proper divisors (175132608).

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

74481792 is a wasteful number, since it uses less digits than its factorization.

74481792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 252 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The square root of 74481792 is about 8630.2834252416. The cubic root of 74481792 is about 420.7428124707.

The spelling of 74481792 in words is "seventy-four million, four hundred eighty-one thousand, seven hundred ninety-two".