1404520828128 has 288 divisors, whose sum is σ = 4503268224000. Its totient is φ = 411378739200.

The previous prime is 1404520828121. The next prime is 1404520828153. The reversal of 1404520828128 is 8218280254041.

It is a happy number.

1404520828128 is a `hidden beast` number, since 1 + 40 + 4 + 520 + 8 + 2 + 81 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404520828121) 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 47 ways as a sum of consecutive naturals, for example, 84352348 + ... + 84368996.

It is an arithmetic number, because the mean of its divisors is an integer number (15636348000).

Almost surely, 2^{1404520828128} is an apocalyptic number.

1404520828128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1404520828128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2251634112000).

1404520828128 is an abundant number, since it is smaller than the sum of its proper divisors (3098747395872).

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

1404520828128 is a wasteful number, since it uses less digits than its factorization.

1404520828128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17566 (or 17555 counting only the distinct ones).

The product of its (nonzero) digits is 327680, while the sum is 45.

The spelling of 1404520828128 in words is "one trillion, four hundred four billion, five hundred twenty million, eight hundred twenty-eight thousand, one hundred twenty-eight".