74173536 has 72 divisors (see below), whose sum is σ = 217080360. Its totient is φ = 24640128.

The previous prime is 74173529. The next prime is 74173537. The reversal of 74173536 is 63537147.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a self number, because there is not a number n which added to its sum of digits gives 74173536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74173537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253006 + ... + 253298.

It is an arithmetic number, because the mean of its divisors is an integer number (3015005).

Almost surely, 2^74173536 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 74173536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108540180).

74173536 is an abundant number, since it is smaller than the sum of its proper divisors (142906824).

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

74173536 is an equidigital number, since it uses as much as digits as its factorization.

74173536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605 (or 298 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 74173536 is about 8612.4059356257. The cubic root of 74173536 is about 420.1615704903.

The spelling of 74173536 in words is "seventy-four million, one hundred seventy-three thousand, five hundred thirty-six".