2439189 has 6 divisors (see below), whose sum is σ = 3523286. Its totient is φ = 1626120.

The previous prime is 2439181. The next prime is 2439197. The reversal of 2439189 is 9819342.

It is an interprime number because it is at equal distance from previous prime (2439181) and next prime (2439197).

It can be written as a sum of positive squares in only one way, i.e., 1703025 + 736164 = 1305^2 + 858^2 .

It is not a de Polignac number, because 2439189 - 2³ = 2439181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2439181) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135502 + ... + 135519.

2^2439189 is an apocalyptic number.

It is an amenable number.

2439189 is a deficient number, since it is larger than the sum of its proper divisors (1084097).

2439189 is a wasteful number, since it uses less digits than its factorization.

2439189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271027 (or 271024 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 2439189 is about 1561.7903188328. The cubic root of 2439189 is about 134.6113927273.

It can be divided in two parts, 2439 and 189, that added together give a triangular number (2628 = T₇₂).

The spelling of 2439189 in words is "two million, four hundred thirty-nine thousand, one hundred eighty-nine".