1428730014444 has 24 divisors (see below), whose sum is σ = 3334199715840. Its totient is φ = 476172431184.

The previous prime is 1428730014433. The next prime is 1428730014497. The reversal of 1428730014444 is 4444100378241.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1428730014396 and 1428730014405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8779384 + ... + 8940639.

It is an arithmetic number, because the mean of its divisors is an integer number (138924988160).

Almost surely, 2^{1428730014444} is an apocalyptic number.

It is an amenable number.

1428730014444 is an abundant number, since it is smaller than the sum of its proper divisors (1905469701396).

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

1428730014444 is a wasteful number, since it uses less digits than its factorization.

1428730014444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17726749 (or 17726747 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 42.

The spelling of 1428730014444 in words is "one trillion, four hundred twenty-eight billion, seven hundred thirty million, fourteen thousand, four hundred forty-four".