2209279485 has 64 divisors (see below), whose sum is σ = 4155494400. Its totient is φ = 981437952.

The previous prime is 2209279481. The next prime is 2209279487. The reversal of 2209279485 is 5849729022.

It is not a de Polignac number, because 2209279485 - 2² = 2209279481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2209279481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 549352 + ... + 553358.

It is an arithmetic number, because the mean of its divisors is an integer number (64929600).

Almost surely, 2^2209279485 is an apocalyptic number.

It is an amenable number.

2209279485 is a deficient number, since it is larger than the sum of its proper divisors (1946214915).

2209279485 is a wasteful number, since it uses less digits than its factorization.

2209279485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 2209279485 is about 47002.9731506423. The cubic root of 2209279485 is about 1302.4174907793.

The spelling of 2209279485 in words is "two billion, two hundred nine million, two hundred seventy-nine thousand, four hundred eighty-five".