1540456330540 has 24 divisors (see below), whose sum is σ = 3236984008272. Its totient is φ = 615796681920.

The previous prime is 1540456330493. The next prime is 1540456330541. The reversal of 1540456330540 is 450336540451.

It is a junction number, because it is equal to n+sod(n) for n = 1540456330493 and 1540456330502.

It is not an unprimeable number, because it can be changed into a prime (1540456330541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24082906 + ... + 24146785.

It is an arithmetic number, because the mean of its divisors is an integer number (134874333678).

Almost surely, 2^{1540456330540} is an apocalyptic number.

1540456330540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1540456330540 is an abundant number, since it is smaller than the sum of its proper divisors (1696527677732).

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

1540456330540 is a wasteful number, since it uses less digits than its factorization.

1540456330540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48231297 (or 48231295 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 1540456330540 in words is "one trillion, five hundred forty billion, four hundred fifty-six million, three hundred thirty thousand, five hundred forty".