2620403980 has 12 divisors (see below), whose sum is σ = 5502848400. Its totient is φ = 1048161584.

The previous prime is 2620403959. The next prime is 2620404001. The reversal of 2620403980 is 893040262.

It is an interprime number because it is at equal distance from previous prime (2620403959) and next prime (2620404001).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65510080 + ... + 65510119.

It is an arithmetic number, because the mean of its divisors is an integer number (458570700).

Almost surely, 2^2620403980 is an apocalyptic number.

2620403980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2620403980 is an abundant number, since it is smaller than the sum of its proper divisors (2882444420).

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

2620403980 is a wasteful number, since it uses less digits than its factorization.

2620403980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131020208 (or 131020206 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 2620403980 is about 51189.8816173665. The cubic root of 2620403980 is about 1378.6565340151.

The spelling of 2620403980 in words is "two billion, six hundred twenty million, four hundred three thousand, nine hundred eighty".