8041403421 has 24 divisors (see below), whose sum is σ = 12340991520. Its totient is φ = 5031304416.

The previous prime is 8041403401. The next prime is 8041403437. The reversal of 8041403421 is 1243041408.

It is not a de Polignac number, because 8041403421 - 2⁵ = 8041403389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8041403401) 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, 201450 + ... + 238043.

It is an arithmetic number, because the mean of its divisors is an integer number (514207980).

Almost surely, 2^8041403421 is an apocalyptic number.

It is an amenable number.

8041403421 is a deficient number, since it is larger than the sum of its proper divisors (4299588099).

8041403421 is a wasteful number, since it uses less digits than its factorization.

8041403421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439625 (or 439622 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 8041403421 is about 89673.8725660936. The cubic root of 8041403421 is about 2003.4443499050. Note that the first 3 decimals are identical.

Adding to 8041403421 its reverse (1243041408), we get a palindrome (9284444829).

It can be divided in two parts, 804 and 1403421, that added together give a square (1404225 = 1185²).

The spelling of 8041403421 in words is "eight billion, forty-one million, four hundred three thousand, four hundred twenty-one".