1540418208 has 48 divisors (see below), whose sum is σ = 4621256640. Its totient is φ = 440119296.

The previous prime is 1540418207. The next prime is 1540418227. The reversal of 1540418208 is 8028140451.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1540418207) 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, 1145473 + ... + 1146816.

It is an arithmetic number, because the mean of its divisors is an integer number (96276180).

Almost surely, 2^1540418208 is an apocalyptic number.

It is an amenable number.

1540418208 is an abundant number, since it is smaller than the sum of its proper divisors (3080838432).

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

1540418208 is a wasteful number, since it uses less digits than its factorization.

1540418208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292309 (or 2292301 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 1540418208 is about 39248.1618423080. The cubic root of 1540418208 is about 1154.9048747579.

Adding to 1540418208 its reverse (8028140451), we get a palindrome (9568558659).

The spelling of 1540418208 in words is "one billion, five hundred forty million, four hundred eighteen thousand, two hundred eight".