4048581 has 8 divisors (see below), whose sum is σ = 5431104. Its totient is φ = 2682560.

The previous prime is 4048573. The next prime is 4048589. The reversal of 4048581 is 1858404.

It is an interprime number because it is at equal distance from previous prime (4048573) and next prime (4048589).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4048581 - 2³ = 4048573 is a prime.

It is a super-2 number, since 2×4048581² = 32782016227122, which contains 22 as substring.

It is a Curzon number.

4048581 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4048589) 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 7 ways as a sum of consecutive naturals, for example, 3540 + ... + 4541.

It is an arithmetic number, because the mean of its divisors is an integer number (678888).

Almost surely, 2^4048581 is an apocalyptic number.

It is an amenable number.

4048581 is a deficient number, since it is larger than the sum of its proper divisors (1382523).

4048581 is a wasteful number, since it uses less digits than its factorization.

4048581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8251.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 4048581 is about 2012.1085954789. The cubic root of 4048581 is about 159.3801669990.

The spelling of 4048581 in words is "four million, forty-eight thousand, five hundred eighty-one".