4401200421 has 16 divisors (see below), whose sum is σ = 6540878400. Its totient is φ = 2924871984.

The previous prime is 4401200411. The next prime is 4401200467. The reversal of 4401200421 is 1240021044.

4401200421 is a `hidden beast` number, since 4 + 40 + 1 + 200 + 421 = 666.

It is not a de Polignac number, because 4401200421 - 2⁵ = 4401200389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4401200394 and 4401200403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4401200411) 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, 248551 + ... + 265668.

It is an arithmetic number, because the mean of its divisors is an integer number (408804900).

Almost surely, 2^4401200421 is an apocalyptic number.

It is an amenable number.

4401200421 is a deficient number, since it is larger than the sum of its proper divisors (2139677979).

4401200421 is a wasteful number, since it uses less digits than its factorization.

4401200421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514545 (or 514539 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 4401200421 is about 66341.5437037758. The cubic root of 4401200421 is about 1638.7915474179.

Adding to 4401200421 its reverse (1240021044), we get a palindrome (5641221465).

The spelling of 4401200421 in words is "four billion, four hundred one million, two hundred thousand, four hundred twenty-one".