74438500 has 48 divisors (see below), whose sum is σ = 165700080. Its totient is φ = 29213600.

The previous prime is 74438473. The next prime is 74438513. The reversal of 74438500 is 583447.

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 can be written as a sum of positive squares in 8 ways, for example, as 27625536 + 46812964 = 5256^2 + 6842^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1404474 + ... + 1404526.

It is an arithmetic number, because the mean of its divisors is an integer number (3452085).

Almost surely, 2^74438500 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 74438500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82850040).

74438500 is an abundant number, since it is smaller than the sum of its proper divisors (91261580).

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

74438500 is an frugal number, since it uses more digits than its factorization.

74438500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 74438500 is about 8627.7749159328. The cubic root of 74438500 is about 420.6612787716.

The spelling of 74438500 in words is "seventy-four million, four hundred thirty-eight thousand, five hundred".