1530400942720 has 96 divisors (see below), whose sum is σ = 3961695545820. Its totient is φ = 565071077376.

The previous prime is 1530400942673. The next prime is 1530400942747. The reversal of 1530400942720 is 272490040351.

It can be written as a sum of positive squares in 6 ways, for example, as 332356862016 + 1198044080704 = 576504^2 + 1094552^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1530400942720.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6966549 + ... + 7182868.

Almost surely, 2^{1530400942720} is an apocalyptic number.

1530400942720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1530400942720 is an abundant number, since it is smaller than the sum of its proper divisors (2431294603100).

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

1530400942720 is a wasteful number, since it uses less digits than its factorization.

1530400942720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14149462 (or 14149437 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 1530400942720 in words is "one trillion, five hundred thirty billion, four hundred million, nine hundred forty-two thousand, seven hundred twenty".