20374045 has 16 divisors (see below), whose sum is σ = 25198272. Its totient is φ = 15805440.

The previous prime is 20374031. The next prime is 20374049. The reversal of 20374045 is 54047302.

It is not a de Polignac number, because 20374045 - 2⁷ = 20373917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20374049) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 41250 + ... + 41740.

It is an arithmetic number, because the mean of its divisors is an integer number (1574892).

Almost surely, 2^20374045 is an apocalyptic number.

It is an amenable number.

20374045 is a deficient number, since it is larger than the sum of its proper divisors (4824227).

20374045 is a wasteful number, since it uses less digits than its factorization.

20374045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 20374045 is about 4513.7617349612. The cubic root of 20374045 is about 273.1235112249.

The spelling of 20374045 in words is "twenty million, three hundred seventy-four thousand, forty-five".