2621980140 has 48 divisors (see below), whose sum is σ = 7906280928. Its totient is φ = 645410304.

The previous prime is 2621980121. The next prime is 2621980171. The reversal of 2621980140 is 410891262.

2621980140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1679977 + ... + 1681536.

It is an arithmetic number, because the mean of its divisors is an integer number (164714186).

Almost surely, 2^2621980140 is an apocalyptic number.

2621980140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2621980140 is an abundant number, since it is smaller than the sum of its proper divisors (5284300788).

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

2621980140 is a wasteful number, since it uses less digits than its factorization.

2621980140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361538 (or 3361536 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 2621980140 is about 51205.2745330010. The cubic root of 2621980140 is about 1378.9328969685.

The spelling of 2621980140 in words is "two billion, six hundred twenty-one million, nine hundred eighty thousand, one hundred forty".