1345284 has 18 divisors (see below), whose sum is σ = 3400670. Its totient is φ = 448416.

The previous prime is 1345277. The next prime is 1345297. The reversal of 1345284 is 4825431.

1345284 is a `hidden beast` number, since 134 + 528 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1272384 + 72900 = 1128^2 + 270^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18649 + ... + 18720.

2^1345284 is an apocalyptic number.

It is an amenable number.

1345284 is an abundant number, since it is smaller than the sum of its proper divisors (2055386).

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

1345284 is a wasteful number, since it uses less digits than its factorization.

1345284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37379 (or 37374 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1345284 is about 1159.8637851058. The cubic root of 1345284 is about 110.3920993086.

The spelling of 1345284 in words is "one million, three hundred forty-five thousand, two hundred eighty-four".