2775640360 has 32 divisors (see below), whose sum is σ = 6260133600. Its totient is φ = 1107599680.

The previous prime is 2775640331. The next prime is 2775640379. The reversal of 2775640360 is 630465772.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 66046 + ... + 99565.

It is an arithmetic number, because the mean of its divisors is an integer number (195629175).

Almost surely, 2^2775640360 is an apocalyptic number.

2775640360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2775640360 is an abundant number, since it is smaller than the sum of its proper divisors (3484493240).

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

2775640360 is a wasteful number, since it uses less digits than its factorization.

2775640360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166041 (or 166037 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 40.

The square root of 2775640360 is about 52684.3464418038. The cubic root of 2775640360 is about 1405.3604627236.

The spelling of 2775640360 in words is "two billion, seven hundred seventy-five million, six hundred forty thousand, three hundred sixty".