74401855 has 8 divisors (see below), whose sum is σ = 97398864. Its totient is φ = 54110400.

The previous prime is 74401837. The next prime is 74401897. The reversal of 74401855 is 55810447.

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

It is not a de Polignac number, because 74401855 - 2⁷ = 74401727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74401855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676326 + ... + 676435.

It is an arithmetic number, because the mean of its divisors is an integer number (12174858).

Almost surely, 2^74401855 is an apocalyptic number.

74401855 is a deficient number, since it is larger than the sum of its proper divisors (22997009).

74401855 is a wasteful number, since it uses less digits than its factorization.

74401855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352777.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 74401855 is about 8625.6509899253. The cubic root of 74401855 is about 420.5922389476.

The spelling of 74401855 in words is "seventy-four million, four hundred one thousand, eight hundred fifty-five".