4030149 has 4 divisors (see below), whose sum is σ = 5373536. Its totient is φ = 2686764.

The previous prime is 4030141. The next prime is 4030153. The reversal of 4030149 is 9410304.

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 4030149 - 2³ = 4030141 is a prime.

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 (4030141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671689 + ... + 671694.

It is an arithmetic number, because the mean of its divisors is an integer number (1343384).

Almost surely, 2^4030149 is an apocalyptic number.

It is an amenable number.

4030149 is a deficient number, since it is larger than the sum of its proper divisors (1343387).

4030149 is a wasteful number, since it uses less digits than its factorization.

4030149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343386.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 4030149 is about 2007.5231007388. The cubic root of 4030149 is about 159.1379286523.

The spelling of 4030149 in words is "four million, thirty thousand, one hundred forty-nine".