2723665320 has 48 divisors (see below), whose sum is σ = 8851913460. Its totient is φ = 726310656.

The previous prime is 2723665277. The next prime is 2723665327. The reversal of 2723665320 is 235663272.

It is a happy number.

2723665320 is a `hidden beast` number, since 272 + 3 + 6 + 65 + 320 = 666.

2723665320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2431870596 + 291794724 = 49314^2 + 17082^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2723665327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3782509 + ... + 3783228.

Almost surely, 2^2723665320 is an apocalyptic number.

2723665320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2723665320 is an abundant number, since it is smaller than the sum of its proper divisors (6128248140).

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

2723665320 is a wasteful number, since it uses less digits than its factorization.

2723665320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7565754 (or 7565747 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The square root of 2723665320 is about 52188.7470629445. The cubic root of 2723665320 is about 1396.5331431058.

The spelling of 2723665320 in words is "two billion, seven hundred twenty-three million, six hundred sixty-five thousand, three hundred twenty".