74205045 has 16 divisors (see below), whose sum is σ = 131920320. Its totient is φ = 39575952.

The previous prime is 74205037. The next prime is 74205049. The reversal of 74205045 is 54050247.

It is not a de Polignac number, because 74205045 - 2³ = 74205037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74205049) 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, 274699 + ... + 274968.

It is an arithmetic number, because the mean of its divisors is an integer number (8245020).

Almost surely, 2^74205045 is an apocalyptic number.

It is an amenable number.

74205045 is a deficient number, since it is larger than the sum of its proper divisors (57715275).

74205045 is a wasteful number, since it uses less digits than its factorization.

74205045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549681 (or 549675 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 74205045 is about 8614.2350211728. The cubic root of 74205045 is about 420.2210571008.

The spelling of 74205045 in words is "seventy-four million, two hundred five thousand, forty-five".