2613979220 has 24 divisors (see below), whose sum is σ = 5501601000. Its totient is φ = 1043259392.

The previous prime is 2613979201. The next prime is 2613979223. The reversal of 2613979220 is 229793162.

It can be written as a sum of positive squares in 4 ways, for example, as 315844 + 2613663376 = 562^2 + 51124^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2613979223) 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, 136565 + ... + 154524.

It is an arithmetic number, because the mean of its divisors is an integer number (229233375).

Almost surely, 2^2613979220 is an apocalyptic number.

2613979220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2613979220 is an abundant number, since it is smaller than the sum of its proper divisors (2887621780).

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

2613979220 is a wasteful number, since it uses less digits than its factorization.

2613979220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291547 (or 291545 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 2613979220 is about 51127.0889059802. The cubic root of 2613979220 is about 1377.5288724881.

The spelling of 2613979220 in words is "two billion, six hundred thirteen million, nine hundred seventy-nine thousand, two hundred twenty".