2620775028 has 12 divisors (see below), whose sum is σ = 6115141760. Its totient is φ = 873591672.

The previous prime is 2620775021. The next prime is 2620775033. The reversal of 2620775028 is 8205770262.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620775021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109198948 + ... + 109198971.

Almost surely, 2^2620775028 is an apocalyptic number.

It is an amenable number.

2620775028 is an abundant number, since it is smaller than the sum of its proper divisors (3494366732).

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

2620775028 is a wasteful number, since it uses less digits than its factorization.

2620775028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218397926 (or 218397924 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 2620775028 is about 51193.5057209408. The cubic root of 2620775028 is about 1378.7216033213.

The spelling of 2620775028 in words is "two billion, six hundred twenty million, seven hundred seventy-five thousand, twenty-eight".