1428301764 has 18 divisors (see below), whose sum is σ = 3610429550. Its totient is φ = 476100576.

The previous prime is 1428301747. The next prime is 1428301783. The reversal of 1428301764 is 4671038241.

It can be written as a sum of positive squares in only one way, i.e., 1398161664 + 30140100 = 37392^2 + 5490^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 39675049 = 1428301764 / (1 + 4 + 2 + 8 + 3 + 0 + 1 + 7 + 6 + 4).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19837489 + ... + 19837560.

Almost surely, 2^1428301764 is an apocalyptic number.

It is an amenable number.

1428301764 is an abundant number, since it is smaller than the sum of its proper divisors (2182127786).

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

1428301764 is a wasteful number, since it uses less digits than its factorization.

1428301764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39675059 (or 39675054 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1428301764 is about 37792.8798055930. The cubic root of 1428301764 is about 1126.1770105154.

The spelling of 1428301764 in words is "one billion, four hundred twenty-eight million, three hundred one thousand, seven hundred sixty-four".