4189029421 has 8 divisors (see below), whose sum is σ = 4238304480. Its totient is φ = 4140042192.

The previous prime is 4189029413. The next prime is 4189029433. The reversal of 4189029421 is 1249209814.

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 4189029421 - 2³ = 4189029413 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 (4189029121) 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, 42610 + ... + 100963.

It is an arithmetic number, because the mean of its divisors is an integer number (529788060).

Almost surely, 2^4189029421 is an apocalyptic number.

It is an amenable number.

4189029421 is a deficient number, since it is larger than the sum of its proper divisors (49275059).

4189029421 is a wasteful number, since it uses less digits than its factorization.

4189029421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143915.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 4189029421 is about 64722.7117865128. The cubic root of 4189029421 is about 1612.0226396681.

The spelling of 4189029421 in words is "four billion, one hundred eighty-nine million, twenty-nine thousand, four hundred twenty-one".