1540184940340 has 12 divisors (see below), whose sum is σ = 3234388374756. Its totient is φ = 616073976128.

The previous prime is 1540184940311. The next prime is 1540184940439. The reversal of 1540184940340 is 430494810451.

It can be written as a sum of positive squares in 2 ways, for example, as 393113952144 + 1147070988196 = 626988^2 + 1071014^2 .

It is a congruent number.

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, 38504623489 + ... + 38504623528.

It is an arithmetic number, because the mean of its divisors is an integer number (269532364563).

Almost surely, 2^{1540184940340} is an apocalyptic number.

1540184940340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1540184940340 is an abundant number, since it is smaller than the sum of its proper divisors (1694203434416).

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

1540184940340 is a wasteful number, since it uses less digits than its factorization.

1540184940340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77009247026 (or 77009247024 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 1540184940340 in words is "one trillion, five hundred forty billion, one hundred eighty-four million, nine hundred forty thousand, three hundred forty".