2003442945 has 64 divisors (see below), whose sum is σ = 4047667200. Its totient is φ = 824491008.

The previous prime is 2003442941. The next prime is 2003442949. The reversal of 2003442945 is 5492443002.

It is an interprime number because it is at equal distance from previous prime (2003442941) and next prime (2003442949).

It is not a de Polignac number, because 2003442945 - 2² = 2003442941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2003442941) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16656 + ... + 65454.

It is an arithmetic number, because the mean of its divisors is an integer number (63244800).

Almost surely, 2^2003442945 is an apocalyptic number.

It is an amenable number.

2003442945 is an abundant number, since it is smaller than the sum of its proper divisors (2044224255).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2003442945 is a wasteful number, since it uses less digits than its factorization.

2003442945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48854.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 2003442945 is about 44759.8362932663. The cubic root of 2003442945 is about 1260.6436085782.

Adding to 2003442945 its reverse (5492443002), we get a palindrome (7495885947).

The spelling of 2003442945 in words is "two billion, three million, four hundred forty-two thousand, nine hundred forty-five".