1428364320 has 48 divisors (see below), whose sum is σ = 4499349120. Its totient is φ = 380897024.

The previous prime is 1428364303. The next prime is 1428364337. The reversal of 1428364320 is 234638241.

It is an interprime number because it is at equal distance from previous prime (1428364303) and next prime (1428364337).

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1487400 + ... + 1488359.

It is an arithmetic number, because the mean of its divisors is an integer number (93736440).

Almost surely, 2^1428364320 is an apocalyptic number.

1428364320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1428364320 is an abundant number, since it is smaller than the sum of its proper divisors (3070984800).

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

1428364320 is a wasteful number, since it uses less digits than its factorization.

1428364320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2975777 (or 2975769 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 1428364320 is about 37793.7074127427. The cubic root of 1428364320 is about 1126.1934515090.

The spelling of 1428364320 in words is "one billion, four hundred twenty-eight million, three hundred sixty-four thousand, three hundred twenty".