4020898989 has 8 divisors (see below), whose sum is σ = 5534140672. Its totient is φ = 2594128320.

The previous prime is 4020898979. The next prime is 4020899011. The reversal of 4020898989 is 9898980204.

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

It is not a de Polignac number, because 4020898989 - 2⁸ = 4020898733 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 (4020898949) 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, 21617644 + ... + 21617829.

It is an arithmetic number, because the mean of its divisors is an integer number (691767584).

Almost surely, 2^4020898989 is an apocalyptic number.

It is an amenable number.

4020898989 is a deficient number, since it is larger than the sum of its proper divisors (1513241683).

4020898989 is a wasteful number, since it uses less digits than its factorization.

4020898989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43235507.

The product of its (nonzero) digits is 2985984, while the sum is 57.

The square root of 4020898989 is about 63410.5589708843. The cubic root of 4020898989 is about 1590.1608408946.

The spelling of 4020898989 in words is "four billion, twenty million, eight hundred ninety-eight thousand, nine hundred eighty-nine".