4003481 has 8 divisors (see below), whose sum is σ = 4086600. Its totient is φ = 3921408.

The previous prime is 4003459. The next prime is 4003501. The reversal of 4003481 is 1843004.

It can be written as a sum of positive squares in 4 ways, for example, as 3481 + 4000000 = 59^2 + 2000^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4003481 - 2¹⁰ = 4002457 is a prime.

It is a super-2 number, since 2×4003481² = 32055720234722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4003781) 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, 14315 + ... + 14591.

It is an arithmetic number, because the mean of its divisors is an integer number (510825).

Almost surely, 2^4003481 is an apocalyptic number.

It is an amenable number.

4003481 is a deficient number, since it is larger than the sum of its proper divisors (83119).

4003481 is a wasteful number, since it uses less digits than its factorization.

4003481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4003481 is about 2000.8700607486. The cubic root of 4003481 is about 158.7861397044.

Adding to 4003481 its reverse (1843004), we get a palindrome (5846485).

It can be divided in two parts, 400 and 3481, that multiplied together give a square (1392400 = 1180²).

The spelling of 4003481 in words is "four million, three thousand, four hundred eighty-one".