74210745 has 48 divisors (see below), whose sum is σ = 142622208. Its totient is φ = 32820480.

The previous prime is 74210737. The next prime is 74210749. The reversal of 74210745 is 54701247.

It is not a de Polignac number, because 74210745 - 2³ = 74210737 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74210749) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21157 + ... + 24413.

It is an arithmetic number, because the mean of its divisors is an integer number (2971296).

Almost surely, 2^74210745 is an apocalyptic number.

It is an amenable number.

74210745 is a deficient number, since it is larger than the sum of its proper divisors (68411463).

74210745 is a wasteful number, since it uses less digits than its factorization.

74210745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3310 (or 3303 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 74210745 is about 8614.5658625377. The cubic root of 74210745 is about 420.2318164712.

The spelling of 74210745 in words is "seventy-four million, two hundred ten thousand, seven hundred forty-five".