74386305 has 96 divisors (see below), whose sum is σ = 161740800. Its totient is φ = 30836736.

The previous prime is 74386303. The next prime is 74386307. The reversal of 74386305 is 50368347.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (74386303) and next prime (74386307).

It is not a de Polignac number, because 74386305 - 2¹ = 74386303 is a prime.

Together with 87354495 it forms an amicable pair .

It is a self number, because there is not a number n which added to its sum of digits gives 74386305.

It is not an unprimeable number, because it can be changed into a prime (74386303) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 155056 + ... + 155534.

It is an arithmetic number, because the mean of its divisors is an integer number (1684800).

Almost surely, 2^74386305 is an apocalyptic number.

It is an amenable number.

74386305 is an abundant number, since it is smaller than the sum of its proper divisors (87354495).

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

74386305 is a wasteful number, since it uses less digits than its factorization.

74386305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 74386305 is about 8624.7495615815. The cubic root of 74386305 is about 420.5629356236.

It can be divided in two parts, 74386 and 305, that added together give a triangular number (74691 = T₃₈₆).

The spelling of 74386305 in words is "seventy-four million, three hundred eighty-six thousand, three hundred five".