2038945 has 4 divisors (see below), whose sum is σ = 2446740. Its totient is φ = 1631152.

The previous prime is 2038943. The next prime is 2038951. The reversal of 2038945 is 5498302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 221841 + 1817104 = 471^2 + 1348^2 .

It is a cyclic number.

It is not a de Polignac number, because 2038945 - 2¹ = 2038943 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 0 + 3⁹ + 8 + 9² + 4⁸ + 5⁹ .

It is not an unprimeable number, because it can be changed into a prime (2038943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203890 + ... + 203899.

It is an arithmetic number, because the mean of its divisors is an integer number (611685).

2^2038945 is an apocalyptic number.

It is an amenable number.

2038945 is a deficient number, since it is larger than the sum of its proper divisors (407795).

2038945 is an equidigital number, since it uses as much as digits as its factorization.

2038945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407794.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 2038945 is about 1427.9163140745. The cubic root of 2038945 is about 126.8046472704.

The spelling of 2038945 in words is "two million, thirty-eight thousand, nine hundred forty-five".