74311845 has 16 divisors (see below), whose sum is σ = 125893440. Its totient is φ = 37301504.

The previous prime is 74311843. The next prime is 74311849. The reversal of 74311845 is 54811347.

It is a cyclic number.

It is not a de Polignac number, because 74311845 - 2¹ = 74311843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74311843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145455 + ... + 145964.

It is an arithmetic number, because the mean of its divisors is an integer number (7868340).

Almost surely, 2^74311845 is an apocalyptic number.

It is an amenable number.

74311845 is a deficient number, since it is larger than the sum of its proper divisors (51581595).

74311845 is a wasteful number, since it uses less digits than its factorization.

74311845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291444.

The product of its digits is 13440, while the sum is 33.

The square root of 74311845 is about 8620.4318337308. The cubic root of 74311845 is about 420.4225622456.

The spelling of 74311845 in words is "seventy-four million, three hundred eleven thousand, eight hundred forty-five".