1544540042 has 16 divisors (see below), whose sum is σ = 2350016064. Its totient is φ = 761280000.

The previous prime is 1544540009. The next prime is 1544540047. The reversal of 1544540042 is 2400454451.

It is a junction number, because it is equal to n+sod(n) for n = 1544539987 and 1544540014.

It is not an unprimeable number, because it can be changed into a prime (1544540047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20042 + ... + 59082.

It is an arithmetic number, because the mean of its divisors is an integer number (146876004).

Almost surely, 2^1544540042 is an apocalyptic number.

1544540042 is a deficient number, since it is larger than the sum of its proper divisors (805476022).

1544540042 is a wasteful number, since it uses less digits than its factorization.

1544540042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39325.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 1544540042 is about 39300.6366615097. The cubic root of 1544540042 is about 1155.9340512459.

Adding to 1544540042 its reverse (2400454451), we get a palindrome (3944994493).

The spelling of 1544540042 in words is "one billion, five hundred forty-four million, five hundred forty thousand, forty-two".