1428688448 has 28 divisors (see below), whose sum is σ = 3092787312. Its totient is φ = 649403520.

The previous prime is 1428688441. The next prime is 1428688477. The reversal of 1428688448 is 8448868241.

It is a self number, because there is not a number n which added to its sum of digits gives 1428688448.

It is not an unprimeable number, because it can be changed into a prime (1428688441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1013990 + ... + 1015397.

Almost surely, 2^1428688448 is an apocalyptic number.

It is an amenable number.

1428688448 is an abundant number, since it is smaller than the sum of its proper divisors (1664098864).

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

1428688448 is a wasteful number, since it uses less digits than its factorization.

1428688448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029410 (or 2029400 counting only the distinct ones).

The product of its digits is 3145728, while the sum is 53.

The square root of 1428688448 is about 37797.9952907558. The cubic root of 1428688448 is about 1126.2786312768.

The spelling of 1428688448 in words is "one billion, four hundred twenty-eight million, six hundred eighty-eight thousand, four hundred forty-eight".