2620641260 has 24 divisors (see below), whose sum is σ = 5693118480. Its totient is φ = 1012109504.

The previous prime is 2620641259. The next prime is 2620641269. The reversal of 2620641260 is 621460262.

It is a super-2 number, since 2×2620641260² = 13735521227228775200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (2620641269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2258594 + ... + 2259753.

It is an arithmetic number, because the mean of its divisors is an integer number (237213270).

Almost surely, 2^2620641260 is an apocalyptic number.

2620641260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2620641260 is an abundant number, since it is smaller than the sum of its proper divisors (3072477220).

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

2620641260 is a wasteful number, since it uses less digits than its factorization.

2620641260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4518385 (or 4518383 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 2620641260 is about 51192.1992104266. The cubic root of 2620641260 is about 1378.6981456332.

The spelling of 2620641260 in words is "two billion, six hundred twenty million, six hundred forty-one thousand, two hundred sixty".