3920189 has 16 divisors (see below), whose sum is σ = 5037312. Its totient is φ = 2965248.

The previous prime is 3920179. The next prime is 3920197. The reversal of 3920189 is 9810293.

3920189 = T₃₀₂ + T₃₀₃ + ... + T₃₇₀.

It is not a de Polignac number, because 3920189 - 2²⁰ = 2871613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3920179) 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, 1157 + ... + 3029.

It is an arithmetic number, because the mean of its divisors is an integer number (314832).

Almost surely, 2^3920189 is an apocalyptic number.

It is an amenable number.

3920189 is a deficient number, since it is larger than the sum of its proper divisors (1117123).

3920189 is a wasteful number, since it uses less digits than its factorization.

3920189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 3920189 is about 1979.9467164548. The cubic root of 3920189 is about 157.6772372791.

The spelling of 3920189 in words is "three million, nine hundred twenty thousand, one hundred eighty-nine".