4085132421 has 8 divisors (see below), whose sum is σ = 5447826720. Its totient is φ = 2722929872.

The previous prime is 4085132383. The next prime is 4085132431. The reversal of 4085132421 is 1242315804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4085132421 - 2¹⁹ = 4084608133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4085132431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103095 + ... + 137108.

It is an arithmetic number, because the mean of its divisors is an integer number (680978340).

Almost surely, 2^4085132421 is an apocalyptic number.

It is an amenable number.

4085132421 is a deficient number, since it is larger than the sum of its proper divisors (1362694299).

4085132421 is a wasteful number, since it uses less digits than its factorization.

4085132421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245875.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 4085132421 is about 63915.0406477223. The cubic root of 4085132421 is about 1598.5836973252.

The spelling of 4085132421 in words is "four billion, eighty-five million, one hundred thirty-two thousand, four hundred twenty-one".