1540964808 has 24 divisors (see below), whose sum is σ = 4173446550. Its totient is φ = 513654912.

The previous prime is 1540964791. The next prime is 1540964827. The reversal of 1540964808 is 8084690451.

It can be written as a sum of positive squares in only one way, i.e., 806446404 + 734518404 = 28398^2 + 27102^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10701073 + ... + 10701216.

Almost surely, 2^1540964808 is an apocalyptic number.

1540964808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1540964808 is an abundant number, since it is smaller than the sum of its proper divisors (2632481742).

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

1540964808 is a wasteful number, since it uses less digits than its factorization.

1540964808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21402301 (or 21402294 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 1540964808 is about 39255.1246081324. The cubic root of 1540964808 is about 1155.0414602534.

The spelling of 1540964808 in words is "one billion, five hundred forty million, nine hundred sixty-four thousand, eight hundred eight".