1428653056 has 44 divisors (see below), whose sum is σ = 2862565740. Its totient is φ = 712663040.

The previous prime is 1428653047. The next prime is 1428653167. The reversal of 1428653056 is 6503568241.

It can be written as a sum of positive squares in 2 ways, for example, as 805651456 + 623001600 = 28384^2 + 24960^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519846 + ... + 522586.

Almost surely, 2^1428653056 is an apocalyptic number.

1428653056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1428653056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1431282870).

1428653056 is an abundant number, since it is smaller than the sum of its proper divisors (1433912684).

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

1428653056 is an equidigital number, since it uses as much as digits as its factorization.

1428653056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270 (or 3252 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 1428653056 is about 37797.5271148788. The cubic root of 1428653056 is about 1126.2693310027.

The spelling of 1428653056 in words is "one billion, four hundred twenty-eight million, six hundred fifty-three thousand, fifty-six".