2600979220 has 24 divisors (see below), whose sum is σ = 6242350464. Its totient is φ = 891764256.

The previous prime is 2600979203. The next prime is 2600979221. The reversal of 2600979220 is 229790062.

It is a self number, because there is not a number n which added to its sum of digits gives 2600979220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2600979221) 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, 9289072 + ... + 9289351.

It is an arithmetic number, because the mean of its divisors is an integer number (260097936).

Almost surely, 2^2600979220 is an apocalyptic number.

2600979220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2600979220 is an abundant number, since it is smaller than the sum of its proper divisors (3641371244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2600979220 is a wasteful number, since it uses less digits than its factorization.

2600979220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18578439 (or 18578437 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 2600979220 is about 50999.7962741029. The cubic root of 2600979220 is about 1375.2414729627.

The spelling of 2600979220 in words is "two billion, six hundred million, nine hundred seventy-nine thousand, two hundred twenty".