1284264 has 24 divisors (see below), whose sum is σ = 3478410. Its totient is φ = 428064.

The previous prime is 1284263. The next prime is 1284271. The reversal of 1284264 is 4624821.

It can be written as a sum of positive squares in only one way, i.e., 887364 + 396900 = 942^2 + 630^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1284263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8847 + ... + 8990.

2^1284264 is an apocalyptic number.

It is an amenable number.

1284264 is an abundant number, since it is smaller than the sum of its proper divisors (2194146).

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

1284264 is a wasteful number, since it uses less digits than its factorization.

1284264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17849 (or 17842 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 1284264 is about 1133.2537226941. The cubic root of 1284264 is about 108.6971364157.

The spelling of 1284264 in words is "one million, two hundred eighty-four thousand, two hundred sixty-four".