2767820420 has 12 divisors (see below), whose sum is σ = 5812422924. Its totient is φ = 1107128160.

The previous prime is 2767820417. The next prime is 2767820443. The reversal of 2767820420 is 240287672.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 726949444 + 2040870976 = 26962^2 + 45176^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69195491 + ... + 69195530.

It is an arithmetic number, because the mean of its divisors is an integer number (484368577).

Almost surely, 2^2767820420 is an apocalyptic number.

2767820420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2767820420 is an abundant number, since it is smaller than the sum of its proper divisors (3044602504).

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

2767820420 is a wasteful number, since it uses less digits than its factorization.

2767820420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138391030 (or 138391028 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 2767820420 is about 52610.0790723603. The cubic root of 2767820420 is about 1404.0394256562.

The spelling of 2767820420 in words is "two billion, seven hundred sixty-seven million, eight hundred twenty thousand, four hundred twenty".