1428447318 has 24 divisors (see below), whose sum is σ = 2879076984. Its totient is φ = 472480320.

The previous prime is 1428447281. The next prime is 1428447323. The reversal of 1428447318 is 8137448241.

It is a self number, because there is not a number n which added to its sum of digits gives 1428447318.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96030 + ... + 109902.

It is an arithmetic number, because the mean of its divisors is an integer number (119961541).

Almost surely, 2^1428447318 is an apocalyptic number.

1428447318 is an abundant number, since it is smaller than the sum of its proper divisors (1450629666).

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

1428447318 is a wasteful number, since it uses less digits than its factorization.

1428447318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14140 (or 14009 counting only the distinct ones).

The product of its digits is 172032, while the sum is 42.

The square root of 1428447318 is about 37794.8054367264. The cubic root of 1428447318 is about 1126.2152643365.

The spelling of 1428447318 in words is "one billion, four hundred twenty-eight million, four hundred forty-seven thousand, three hundred eighteen".