4380149 has 4 divisors (see below), whose sum is σ = 4401120. Its totient is φ = 4359180.

The previous prime is 4380137. The next prime is 4380151. The reversal of 4380149 is 9410834.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9410834 = 2 ⋅4705417.

It is a cyclic number.

It is not a de Polignac number, because 4380149 - 2⁴ = 4380133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4380119) 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, 10169 + ... + 10590.

It is an arithmetic number, because the mean of its divisors is an integer number (1100280).

Almost surely, 2^4380149 is an apocalyptic number.

It is an amenable number.

4380149 is a deficient number, since it is larger than the sum of its proper divisors (20971).

4380149 is a wasteful number, since it uses less digits than its factorization.

4380149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20970.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 4380149 is about 2092.8805508199. The cubic root of 4380149 is about 163.6174530990.

The spelling of 4380149 in words is "four million, three hundred eighty thousand, one hundred forty-nine".