1428071424 has 88 divisors (see below), whose sum is σ = 4099240320. Its totient is φ = 439394304.

The previous prime is 1428071401. The next prime is 1428071429. The reversal of 1428071424 is 4241708241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428071429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22057 + ... + 57815.

Almost surely, 2^1428071424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1428071424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2049620160).

1428071424 is an abundant number, since it is smaller than the sum of its proper divisors (2671168896).

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

1428071424 is a wasteful number, since it uses less digits than its factorization.

1428071424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35795 (or 35777 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 1428071424 is about 37789.8322833008. The cubic root of 1428071424 is about 1126.1164683235.

Adding to 1428071424 its reverse (4241708241), we get a palindrome (5669779665).

The spelling of 1428071424 in words is "one billion, four hundred twenty-eight million, seventy-one thousand, four hundred twenty-four".