4045010421 has 4 divisors (see below), whose sum is σ = 5393347232. Its totient is φ = 2696673612.

The previous prime is 4045010419. The next prime is 4045010423. The reversal of 4045010421 is 1240105404.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (4045010419) and next prime (4045010423).

It is not a de Polignac number, because 4045010421 - 2¹ = 4045010419 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 (4045010423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674168401 + ... + 674168406.

It is an arithmetic number, because the mean of its divisors is an integer number (1348336808).

Almost surely, 2^4045010421 is an apocalyptic number.

It is an amenable number.

4045010421 is a deficient number, since it is larger than the sum of its proper divisors (1348336811).

4045010421 is a wasteful number, since it uses less digits than its factorization.

4045010421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348336810.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 4045010421 is about 63600.3963902742. The cubic root of 4045010421 is about 1593.3329898470.

Adding to 4045010421 its reverse (1240105404), we get a palindrome (5285115825).

The spelling of 4045010421 in words is "four billion, forty-five million, ten thousand, four hundred twenty-one".