4045003421 has 16 divisors (see below), whose sum is σ = 4179542400. Its totient is φ = 3912487488.

The previous prime is 4045003397. The next prime is 4045003463. The reversal of 4045003421 is 1243005404.

It is a cyclic number.

It is not a de Polignac number, because 4045003421 - 2⁶ = 4045003357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4045003481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2422775 + ... + 2424443.

It is an arithmetic number, because the mean of its divisors is an integer number (261221400).

Almost surely, 2^4045003421 is an apocalyptic number.

It is an amenable number.

4045003421 is a deficient number, since it is larger than the sum of its proper divisors (134538979).

4045003421 is a wasteful number, since it uses less digits than its factorization.

4045003421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 4045003421 is about 63600.3413591468. The cubic root of 4045003421 is about 1593.3320707445.

Adding to 4045003421 its reverse (1243005404), we get a palindrome (5288008825).

The spelling of 4045003421 in words is "four billion, forty-five million, three thousand, four hundred twenty-one".