1428848730 has 96 divisors (see below), whose sum is σ = 3839322240. Its totient is φ = 368484480.

The previous prime is 1428848723. The next prime is 1428848741. The reversal of 1428848730 is 378488241.

It is a super-2 number, since 2×1428848730² = 4083217386445225800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 336561 + ... + 340779.

It is an arithmetic number, because the mean of its divisors is an integer number (39992940).

Almost surely, 2^1428848730 is an apocalyptic number.

1428848730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1428848730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1919661120).

1428848730 is an abundant number, since it is smaller than the sum of its proper divisors (2410473510).

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

1428848730 is a wasteful number, since it uses less digits than its factorization.

1428848730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4356 (or 4353 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The square root of 1428848730 is about 37800.1154760141. The cubic root of 1428848730 is about 1126.3207480964.

The spelling of 1428848730 in words is "one billion, four hundred twenty-eight million, eight hundred forty-eight thousand, seven hundred thirty".