2003481 has 8 divisors (see below), whose sum is σ = 2968160. Its totient is φ = 1335636.

The previous prime is 2003471. The next prime is 2003483. The reversal of 2003481 is 1843002.

It is a happy number.

It is not a de Polignac number, because 2003481 - 2⁹ = 2002969 is a prime.

It is a super-2 number, since 2×2003481² = 8027872234722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2003483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37075 + ... + 37128.

It is an arithmetic number, because the mean of its divisors is an integer number (371020).

2^2003481 is an apocalyptic number.

It is an amenable number.

2003481 is a deficient number, since it is larger than the sum of its proper divisors (964679).

2003481 is an equidigital number, since it uses as much as digits as its factorization.

2003481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74212 (or 74206 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2003481 is about 1415.4437466745. The cubic root of 2003481 is about 126.0651590419.

Adding to 2003481 its reverse (1843002), we get a palindrome (3846483).

The spelling of 2003481 in words is "two million, three thousand, four hundred eighty-one".