1540021533348 has 48 divisors (see below), whose sum is σ = 3692678580864. Its totient is φ = 499171875840.

The previous prime is 1540021533329. The next prime is 1540021533353. The reversal of 1540021533348 is 8433351200451.

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, 268488 + ... + 1775423.

It is an arithmetic number, because the mean of its divisors is an integer number (76930803768).

Almost surely, 2^{1540021533348} is an apocalyptic number.

It is an amenable number.

1540021533348 is an abundant number, since it is smaller than the sum of its proper divisors (2152657047516).

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

1540021533348 is a wasteful number, since it uses less digits than its factorization.

1540021533348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045652 (or 2045650 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

Adding to 1540021533348 its reverse (8433351200451), we get a palindrome (9973372733799).

The spelling of 1540021533348 in words is "one trillion, five hundred forty billion, twenty-one million, five hundred thirty-three thousand, three hundred forty-eight".