4032145421 has 4 divisors (see below), whose sum is σ = 4032330912. Its totient is φ = 4031959932.

The previous prime is 4032145409. The next prime is 4032145441. The reversal of 4032145421 is 1245412304.

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 a cyclic number.

It is not a de Polignac number, because 4032145421 - 2¹⁰ = 4032144397 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 (4032145441) 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, 55025 + ... + 105318.

It is an arithmetic number, because the mean of its divisors is an integer number (1008082728).

Almost surely, 2^4032145421 is an apocalyptic number.

It is an amenable number.

4032145421 is a deficient number, since it is larger than the sum of its proper divisors (185491).

4032145421 is a wasteful number, since it uses less digits than its factorization.

4032145421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185490.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 4032145421 is about 63499.1765379678. The cubic root of 4032145421 is about 1591.6420177988.

Adding to 4032145421 its reverse (1245412304), we get a palindrome (5277557725).

The spelling of 4032145421 in words is "four billion, thirty-two million, one hundred forty-five thousand, four hundred twenty-one".