74723544 has 96 divisors (see below), whose sum is σ = 232895520. Its totient is φ = 21201408.

The previous prime is 74723531. The next prime is 74723563. The reversal of 74723544 is 44532747.

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

It is a junction number, because it is equal to n+sod(n) for n = 74723499 and 74723508.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 86764 + ... + 87620.

It is an arithmetic number, because the mean of its divisors is an integer number (2425995).

Almost surely, 2^74723544 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 74723544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116447760).

74723544 is an abundant number, since it is smaller than the sum of its proper divisors (158171976).

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

74723544 is a wasteful number, since it uses less digits than its factorization.

74723544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049 (or 1042 counting only the distinct ones).

The product of its digits is 94080, while the sum is 36.

The square root of 74723544 is about 8644.2781075113. The cubic root of 74723544 is about 421.1975346376.

The spelling of 74723544 in words is "seventy-four million, seven hundred twenty-three thousand, five hundred forty-four".