74401 has 4 divisors (see below), whose sum is σ = 76032. Its totient is φ = 72772.

The previous prime is 74383. The next prime is 74411. The reversal of 74401 is 10447.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10447 = 31 ⋅337.

It is a cyclic number.

It is not a de Polignac number, because 74401 - 2¹¹ = 72353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745 + ... + 838.

It is an arithmetic number, because the mean of its divisors is an integer number (19008).

2⁷⁴⁴⁰¹ is an apocalyptic number.

It is an amenable number.

74401 is a deficient number, since it is larger than the sum of its proper divisors (1631).

74401 is a wasteful number, since it uses less digits than its factorization.

74401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 74401 is about 272.7654670225. The cubic root of 74401 is about 42.0590627842.

Adding to 74401 its reverse (10447), we get a palindrome (84848).

The spelling of 74401 in words is "seventy-four thousand, four hundred one", and thus it is an iban number.