4581949 has 4 divisors (see below), whose sum is σ = 4592736. Its totient is φ = 4571164.

The previous prime is 4581947. The next prime is 4581977. The reversal of 4581949 is 9491854.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4581949 - 2¹ = 4581947 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 (4581943) 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 3 ways as a sum of consecutive naturals, for example, 4729 + ... + 5614.

It is an arithmetic number, because the mean of its divisors is an integer number (1148184).

Almost surely, 2^4581949 is an apocalyptic number.

It is an amenable number.

4581949 is a deficient number, since it is larger than the sum of its proper divisors (10787).

4581949 is a wasteful number, since it uses less digits than its factorization.

4581949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10786.

The product of its digits is 51840, while the sum is 40.

The square root of 4581949 is about 2140.5487614161. The cubic root of 4581949 is about 166.0925235403.

The spelling of 4581949 in words is "four million, five hundred eighty-one thousand, nine hundred forty-nine".