74401845 has 32 divisors (see below), whose sum is σ = 138835200. Its totient is φ = 34009920.

The previous prime is 74401837. The next prime is 74401897. The reversal of 74401845 is 54810447.

It is not a de Polignac number, because 74401845 - 2³ = 74401837 is a prime.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 2086 + ... + 12375.

It is an arithmetic number, because the mean of its divisors is an integer number (4338600).

Almost surely, 2^74401845 is an apocalyptic number.

It is an amenable number.

74401845 is a deficient number, since it is larger than the sum of its proper divisors (64433355).

74401845 is a wasteful number, since it uses less digits than its factorization.

74401845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14490 (or 14476 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 74401845 is about 8625.6504102589. The cubic root of 74401845 is about 420.5922201044.

The spelling of 74401845 in words is "seventy-four million, four hundred one thousand, eight hundred forty-five".