4491042171 has 48 divisors (see below), whose sum is σ = 7536797184. Its totient is φ = 2328480000.

The previous prime is 4491042121. The next prime is 4491042173. The reversal of 4491042171 is 1712401944.

It is not a de Polignac number, because 4491042171 - 2⁶ = 4491042107 is a prime.

It is a super-3 number, since 3×4491042171³ (a number of 30 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (4491042173) 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, 1601971 + ... + 1604771.

It is an arithmetic number, because the mean of its divisors is an integer number (157016608).

Almost surely, 2^4491042171 is an apocalyptic number.

4491042171 is a deficient number, since it is larger than the sum of its proper divisors (3045755013).

4491042171 is a wasteful number, since it uses less digits than its factorization.

4491042171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464 (or 3453 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 4491042171 is about 67015.2383491994. The cubic root of 4491042171 is about 1649.8674115681.

The spelling of 4491042171 in words is "four billion, four hundred ninety-one million, forty-two thousand, one hundred seventy-one".