4102040421 has 16 divisors (see below), whose sum is σ = 6078088000. Its totient is φ = 2734247664.

The previous prime is 4102040413. The next prime is 4102040429. The reversal of 4102040421 is 1240402014.

4102040421 is a `hidden beast` number, since 41 + 0 + 204 + 0 + 421 = 666.

It is an interprime number because it is at equal distance from previous prime (4102040413) and next prime (4102040429).

It is not a de Polignac number, because 4102040421 - 2³ = 4102040413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4102040394 and 4102040403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4102040429) 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, 294210 + ... + 307836.

It is an arithmetic number, because the mean of its divisors is an integer number (379880500).

Almost surely, 2^4102040421 is an apocalyptic number.

It is an amenable number.

4102040421 is a deficient number, since it is larger than the sum of its proper divisors (1976047579).

4102040421 is a wasteful number, since it uses less digits than its factorization.

4102040421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24785 (or 24779 counting only the distinct ones).

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

The square root of 4102040421 is about 64047.1734036718. The cubic root of 4102040421 is about 1600.7861268407.

Adding to 4102040421 its reverse (1240402014), we get a palindrome (5342442435).

The spelling of 4102040421 in words is "four billion, one hundred two million, forty thousand, four hundred twenty-one".