74401243 has 8 divisors (see below), whose sum is σ = 85362912. Its totient is φ = 63522816.

The previous prime is 74401237. The next prime is 74401247. The reversal of 74401243 is 34210447.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74401243 - 2⁹ = 74400731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74401247) 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, 18880 + ... + 22477.

It is an arithmetic number, because the mean of its divisors is an integer number (10670364).

Almost surely, 2^74401243 is an apocalyptic number.

74401243 is a deficient number, since it is larger than the sum of its proper divisors (10961669).

74401243 is a wasteful number, since it uses less digits than its factorization.

74401243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41621.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 74401243 is about 8625.6155142691. The cubic root of 74401243 is about 420.5910857364.

The spelling of 74401243 in words is "seventy-four million, four hundred one thousand, two hundred forty-three".