4003413921 has 24 divisors (see below), whose sum is σ = 6272360640. Its totient is φ = 2445905376.

The previous prime is 4003413917. The next prime is 4003413941. The reversal of 4003413921 is 1293143004.

It is not a de Polignac number, because 4003413921 - 2² = 4003413917 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4003413901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106821 + ... + 139346.

It is an arithmetic number, because the mean of its divisors is an integer number (261348360).

Almost surely, 2^4003413921 is an apocalyptic number.

It is an amenable number.

4003413921 is a deficient number, since it is larger than the sum of its proper divisors (2268946719).

4003413921 is a wasteful number, since it uses less digits than its factorization.

4003413921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246325 (or 246322 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 4003413921 is about 63272.5368623702. The cubic root of 4003413921 is about 1587.8525286993.

Adding to 4003413921 its reverse (1293143004), we get a palindrome (5296556925).

The spelling of 4003413921 in words is "four billion, three million, four hundred thirteen thousand, nine hundred twenty-one".