1478530260040 has 32 divisors (see below), whose sum is σ = 3328776317880. Its totient is φ = 591041751552.

The previous prime is 1478530259959. The next prime is 1478530260041. The reversal of 1478530260040 is 400620358741.

It can be written as a sum of positive squares in 4 ways, for example, as 1007080489156 + 471449770884 = 1003534^2 + 686622^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1478530259975 and 1478530260002.

It is not an unprimeable number, because it can be changed into a prime (1478530260041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11508837 + ... + 11636596.

Almost surely, 2^{1478530260040} is an apocalyptic number.

1478530260040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1478530260040 is an abundant number, since it is smaller than the sum of its proper divisors (1850246057840).

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

1478530260040 is a wasteful number, since it uses less digits than its factorization.

1478530260040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23147041 (or 23147037 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 1478530260040 in words is "one trillion, four hundred seventy-eight billion, five hundred thirty million, two hundred sixty thousand, forty".