74493594 has 72 divisors (see below), whose sum is σ = 191781408. Its totient is φ = 21257640.

The previous prime is 74493583. The next prime is 74493607. The reversal of 74493594 is 49539447.

It is a happy number.

74493594 is a `hidden beast` number, since 74 + 493 + 5 + 94 = 666.

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 35 ways as a sum of consecutive naturals, for example, 91449 + ... + 92259.

Almost surely, 2^74493594 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74493594, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95890704).

74493594 is an abundant number, since it is smaller than the sum of its proper divisors (117287814).

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

74493594 is an frugal number, since it uses more digits than its factorization.

74493594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 823 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 74493594 is about 8630.9671532222. The cubic root of 74493594 is about 420.7650342079.

The spelling of 74493594 in words is "seventy-four million, four hundred ninety-three thousand, five hundred ninety-four".