4289149921 has 16 divisors (see below), whose sum is σ = 5068946304. Its totient is φ = 3553190784.

The previous prime is 4289149903. The next prime is 4289149937. The reversal of 4289149921 is 1299419824.

It is a cyclic number.

It is not a de Polignac number, because 4289149921 - 2¹¹ = 4289147873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4289149961) 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, 61420 + ... + 111133.

It is an arithmetic number, because the mean of its divisors is an integer number (316809144).

Almost surely, 2^4289149921 is an apocalyptic number.

It is an amenable number.

4289149921 is a deficient number, since it is larger than the sum of its proper divisors (779796383).

4289149921 is a wasteful number, since it uses less digits than its factorization.

4289149921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172680.

The product of its digits is 373248, while the sum is 49.

The square root of 4289149921 is about 65491.6019120009. The cubic root of 4289149921 is about 1624.7644529277.

The spelling of 4289149921 in words is "four billion, two hundred eighty-nine million, one hundred forty-nine thousand, nine hundred twenty-one".