2730977820 has 36 divisors (see below), whose sum is σ = 8283966600. Its totient is φ = 728260704.

The previous prime is 2730977819. The next prime is 2730977833. The reversal of 2730977820 is 287790372.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7585870 + ... + 7586229.

Almost surely, 2^2730977820 is an apocalyptic number.

2730977820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2730977820 is an abundant number, since it is smaller than the sum of its proper divisors (5552988780).

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

2730977820 is a wasteful number, since it uses less digits than its factorization.

2730977820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15172114 (or 15172109 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 2730977820 is about 52258.7583090146. The cubic root of 2730977820 is about 1397.7818309120.

The spelling of 2730977820 in words is "two billion, seven hundred thirty million, nine hundred seventy-seven thousand, eight hundred twenty".