2039445 has 16 divisors (see below), whose sum is σ = 3625920. Its totient is φ = 1087632.

The previous prime is 2039437. The next prime is 2039461. The reversal of 2039445 is 5449302.

It is not a de Polignac number, because 2039445 - 2³ = 2039437 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7419 + ... + 7688.

It is an arithmetic number, because the mean of its divisors is an integer number (226620).

2^2039445 is an apocalyptic number.

It is an amenable number.

2039445 is a deficient number, since it is larger than the sum of its proper divisors (1586475).

2039445 is a wasteful number, since it uses less digits than its factorization.

2039445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15121 (or 15115 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2039445 is about 1428.0913836306. The cubic root of 2039445 is about 126.8150116404.

The spelling of 2039445 in words is "two million, thirty-nine thousand, four hundred forty-five".