74401808 has 40 divisors (see below), whose sum is σ = 156739968. Its totient is φ = 34008192.

The previous prime is 74401801. The next prime is 74401837. The reversal of 74401808 is 80810447.

It is not an unprimeable number, because it can be changed into a prime (74401801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20585 + ... + 23927.

Almost surely, 2^74401808 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 74401808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78369984).

74401808 is an abundant number, since it is smaller than the sum of its proper divisors (82338160).

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

74401808 is a wasteful number, since it uses less digits than its factorization.

74401808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3471 (or 3465 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 74401808 is about 8625.6482654929. The cubic root of 74401808 is about 420.5921503843.

It can be divided in two parts, 74 and 401808, that multiplied together give a palindrome (29733792).

The spelling of 74401808 in words is "seventy-four million, four hundred one thousand, eight hundred eight".