3820149 has 16 divisors (see below), whose sum is σ = 5703040. Its totient is φ = 2527200.

The previous prime is 3820133. The next prime is 3820153. The reversal of 3820149 is 9410283.

It is not a de Polignac number, because 3820149 - 2⁴ = 3820133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3820109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3609 + ... + 4545.

It is an arithmetic number, because the mean of its divisors is an integer number (356440).

Almost surely, 2^3820149 is an apocalyptic number.

It is an amenable number.

3820149 is a deficient number, since it is larger than the sum of its proper divisors (1882891).

3820149 is a wasteful number, since it uses less digits than its factorization.

3820149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097 (or 1091 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 3820149 is about 1954.5201457135. The cubic root of 3820149 is about 156.3243989158.

It can be divided in two parts, 3820 and 149, that added together give a square (3969 = 63²).

The spelling of 3820149 in words is "three million, eight hundred twenty thousand, one hundred forty-nine".