2723540240 has 20 divisors (see below), whose sum is σ = 6332231244. Its totient is φ = 1089416064.

The previous prime is 2723540231. The next prime is 2723540297. The reversal of 2723540240 is 420453272.

It can be written as a sum of positive squares in 2 ways, for example, as 1196606464 + 1526933776 = 34592^2 + 39076^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 17022047 + ... + 17022206.

Almost surely, 2^2723540240 is an apocalyptic number.

2723540240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2723540240 is an abundant number, since it is smaller than the sum of its proper divisors (3608691004).

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

2723540240 is a wasteful number, since it uses less digits than its factorization.

2723540240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34044266 (or 34044260 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 2723540240 is about 52187.5487065641. The cubic root of 2723540240 is about 1396.5117649237.

The spelling of 2723540240 in words is "two billion, seven hundred twenty-three million, five hundred forty thousand, two hundred forty".