1428928562884 has 9 divisors (see below), whose sum is σ = 2500629168877. Its totient is φ = 714463086064.

The previous prime is 1428928562857. The next prime is 1428928562923. The reversal of 1428928562884 is 4882658298241.

The square root of 1428928562884 is 1195378.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3483596484 + 1425444966400 = 59022^2 + 1193920^2 .

It is a super-3 number, since 3×1428928562884³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 2091912 + ... + 2689600.

Almost surely, 2^{1428928562884} is an apocalyptic number.

1428928562884 is the 1195378-th square number.

It is an amenable number.

1428928562884 is a deficient number, since it is larger than the sum of its proper divisors (1071700605993).

1428928562884 is an frugal number, since it uses more digits than its factorization.

1428928562884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195382 (or 597691 counting only the distinct ones).

The product of its digits is 141557760, while the sum is 67.

The spelling of 1428928562884 in words is "one trillion, four hundred twenty-eight billion, nine hundred twenty-eight million, five hundred sixty-two thousand, eight hundred eighty-four".