1284948 has 36 divisors (see below), whose sum is σ = 3712800. Its totient is φ = 367056.

The previous prime is 1284937. The next prime is 1284967. The reversal of 1284948 is 8494821.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 2298 + ... + 2801.

2^1284948 is an apocalyptic number.

1284948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1284948 is an abundant number, since it is smaller than the sum of its proper divisors (2427852).

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

1284948 is a wasteful number, since it uses less digits than its factorization.

1284948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5116 (or 5111 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 1284948 is about 1133.5554684267. Note that the first 3 decimals coincide. The cubic root of 1284948 is about 108.7164303837.

The spelling of 1284948 in words is "one million, two hundred eighty-four thousand, nine hundred forty-eight".