1540541422244 has 48 divisors (see below), whose sum is σ = 2956727336640. Its totient is φ = 696510627840.

The previous prime is 1540541422201. The next prime is 1540541422249. The reversal of 1540541422244 is 4422241450451.

It is a junction number, because it is equal to n+sod(n) for n = 1540541422198 and 1540541422207.

It is not an unprimeable number, because it can be changed into a prime (1540541422249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87229487 + ... + 87247145.

It is an arithmetic number, because the mean of its divisors is an integer number (61598486180).

Almost surely, 2^{1540541422244} is an apocalyptic number.

It is an amenable number.

1540541422244 is a deficient number, since it is larger than the sum of its proper divisors (1416185914396).

1540541422244 is a wasteful number, since it uses less digits than its factorization.

1540541422244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28140 (or 28138 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 38.

Adding to 1540541422244 its reverse (4422241450451), we get a palindrome (5962782872695).

The spelling of 1540541422244 in words is "one trillion, five hundred forty billion, five hundred forty-one million, four hundred twenty-two thousand, two hundred forty-four".