1428538560 has 336 divisors, whose sum is σ = 5090403840. Its totient is φ = 338411520.

The previous prime is 1428538519. The next prime is 1428538567. The reversal of 1428538560 is 658358241.

It is not an unprimeable number, because it can be changed into a prime (1428538567) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5271225 + ... + 5271495.

Almost surely, 2^1428538560 is an apocalyptic number.

1428538560 is a gapful number since it is divisible by the number (10) 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 1428538560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2545201920).

1428538560 is an abundant number, since it is smaller than the sum of its proper divisors (3661865280).

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

1428538560 is a wasteful number, since it uses less digits than its factorization.

1428538560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 1428538560 is about 37796.0124880919. The cubic root of 1428538560 is about 1126.2392428069.

The spelling of 1428538560 in words is "one billion, four hundred twenty-eight million, five hundred thirty-eight thousand, five hundred sixty".