4628181 has 4 divisors (see below), whose sum is σ = 6170912. Its totient is φ = 3085452.

The previous prime is 4628177. The next prime is 4628201. The reversal of 4628181 is 1818264.

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 not a de Polignac number, because 4628181 - 2² = 4628177 is a prime.

It is a super-2 number, since 2×4628181² = 42840118737522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4628101) 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, 771361 + ... + 771366.

It is an arithmetic number, because the mean of its divisors is an integer number (1542728).

Almost surely, 2^4628181 is an apocalyptic number.

It is an amenable number.

4628181 is a deficient number, since it is larger than the sum of its proper divisors (1542731).

4628181 is a wasteful number, since it uses less digits than its factorization.

4628181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542730.

The product of its digits is 3072, while the sum is 30.

The square root of 4628181 is about 2151.3207571164. The cubic root of 4628181 is about 166.6492812977.

The spelling of 4628181 in words is "four million, six hundred twenty-eight thousand, one hundred eighty-one".