2772371540 has 24 divisors (see below), whose sum is σ = 6009787392. Its totient is φ = 1073175840.

The previous prime is 2772371527. The next prime is 2772371597. The reversal of 2772371540 is 451732772.

It is a junction number, because it is equal to n+sod(n) for n = 2772371494 and 2772371503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2235164 + ... + 2236403.

It is an arithmetic number, because the mean of its divisors is an integer number (250407808).

Almost surely, 2^2772371540 is an apocalyptic number.

2772371540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2772371540 is an abundant number, since it is smaller than the sum of its proper divisors (3237415852).

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

2772371540 is a wasteful number, since it uses less digits than its factorization.

2772371540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4471607 (or 4471605 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 2772371540 is about 52653.3146155111. The cubic root of 2772371540 is about 1404.8085570557.

The spelling of 2772371540 in words is "two billion, seven hundred seventy-two million, three hundred seventy-one thousand, five hundred forty".