2742040435640 has 64 divisors (see below), whose sum is σ = 6732253647360. Its totient is φ = 996840315520.

The previous prime is 2742040435613. The next prime is 2742040435661. The reversal of 2742040435640 is 465340402472.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 830309 + ... + 2484651.

It is an arithmetic number, because the mean of its divisors is an integer number (105191463240).

Almost surely, 2^{2742040435640} is an apocalyptic number.

2742040435640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2742040435640 is an abundant number, since it is smaller than the sum of its proper divisors (3990213211720).

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

2742040435640 is a wasteful number, since it uses less digits than its factorization.

2742040435640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658132 (or 1658128 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 41.

The spelling of 2742040435640 in words is "two trillion, seven hundred forty-two billion, forty million, four hundred thirty-five thousand, six hundred forty".