1540031203044 has 36 divisors (see below), whose sum is σ = 3895584782544. Its totient is φ = 512983980912.

The previous prime is 1540031203043. The next prime is 1540031203049. The reversal of 1540031203044 is 4403021300451.

It is a happy number.

1540031203044 is a `hidden beast` number, since 1 + 5 + 40 + 0 + 312 + 0 + 304 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1540031203044² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1540031202999 and 1540031203017.

It is not an unprimeable number, because it can be changed into a prime (1540031203043) 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 11 ways as a sum of consecutive naturals, for example, 14937642 + ... + 15040385.

It is an arithmetic number, because the mean of its divisors is an integer number (108210688404).

Almost surely, 2^{1540031203044} is an apocalyptic number.

It is an amenable number.

1540031203044 is an abundant number, since it is smaller than the sum of its proper divisors (2355553579500).

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

1540031203044 is a wasteful number, since it uses less digits than its factorization.

1540031203044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29979464 (or 29979459 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 1540031203044 its reverse (4403021300451), we get a palindrome (5943052503495).

The spelling of 1540031203044 in words is "one trillion, five hundred forty billion, thirty-one million, two hundred three thousand, forty-four".