4045021673 has 16 divisors (see below), whose sum is σ = 5076556800. Its totient is φ = 3131082000.

The previous prime is 4045021657. The next prime is 4045021679. The reversal of 4045021673 is 3761205404.

It is a cyclic number.

It is not a de Polignac number, because 4045021673 - 2⁴ = 4045021657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4045021679) 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, 162323 + ... + 185576.

It is an arithmetic number, because the mean of its divisors is an integer number (317284800).

Almost surely, 2^4045021673 is an apocalyptic number.

It is an amenable number.

4045021673 is a deficient number, since it is larger than the sum of its proper divisors (1031535127).

4045021673 is a wasteful number, since it uses less digits than its factorization.

4045021673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348068.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 4045021673 is about 63600.4848487808. The cubic root of 4045021673 is about 1593.3344672364.

The spelling of 4045021673 in words is "four billion, forty-five million, twenty-one thousand, six hundred seventy-three".