2009021098 has 16 divisors (see below), whose sum is σ = 3478137984. Its totient is φ = 852483600.

The previous prime is 2009021093. The next prime is 2009021099. The reversal of 2009021098 is 8901209002.

It is not an unprimeable number, because it can be changed into a prime (2009021093) 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, 708990 + ... + 711817.

It is an arithmetic number, because the mean of its divisors is an integer number (217383624).

Almost surely, 2^2009021098 is an apocalyptic number.

2009021098 is a deficient number, since it is larger than the sum of its proper divisors (1469116886).

2009021098 is a wasteful number, since it uses less digits than its factorization.

2009021098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420917.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 2009021098 is about 44822.1050152712. The cubic root of 2009021098 is about 1261.8125207589.

The spelling of 2009021098 in words is "two billion, nine million, twenty-one thousand, ninety-eight".