1540310440534 has 32 divisors (see below), whose sum is σ = 2460823449696. Its totient is φ = 720572121600.

The previous prime is 1540310440523. The next prime is 1540310440607. The reversal of 1540310440534 is 4350440130451.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 1540310440534.

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, 82638664 + ... + 82657300.

It is an arithmetic number, because the mean of its divisors is an integer number (76900732803).

Almost surely, 2^{1540310440534} is an apocalyptic number.

1540310440534 is a deficient number, since it is larger than the sum of its proper divisors (920513009162).

1540310440534 is a wasteful number, since it uses less digits than its factorization.

1540310440534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32880.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 1540310440534 its reverse (4350440130451), we get a palindrome (5890750570985).

The spelling of 1540310440534 in words is "one trillion, five hundred forty billion, three hundred ten million, four hundred forty thousand, five hundred thirty-four".